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# Version 1.5.0 [2025-01-07]
## Significant Changes
* Package now requires R (>= 3.4.0) [2017-04-21], because the next
release of R will have stricter C header requirements that are not
backward compatible with older versions of R.
## Deprecated and Defunct
* The hidden R options for deescalating the error for using `useNames
= NA` to a warning has been removed; `useNames = NA` is now always
an error.
* Calling `colRanks()` and `rowRanks()` without explicitly specifying
argument `ties.method` is deprecated since version 1.3.0
[2024-04-10]. If not explicitly specified, a deprecation warning is
now produced every 10:th call not specifying the `ties.method`
argument.
## Bug Fixes
* The error message of `colTabulates()` and `rowTabulates()`
asserting that double values are passed, reported on the class of
the input data, not the storage type.
# Version 1.4.1 [2024-09-06]
## Bug Fixes
* Fix a `runtime error: null pointer passed as argument 1, which is
declared to never be null` bug introduced in v1.4.0 that was
detected by the UndefinedBehaviorSanitizer (UBSan) running on CRAN.
# Version 1.4.0 [2024-09-03]
## Performance
* `rowSums2()` is now significantly faster for larger matrices.
## Miscellaneous
* None of the error messages use a trailing period.
* Addressing changes in the C API of R-devel resulted in compiler
errors such as `error: implicit declaration of function 'Calloc';
did you mean 'calloc'? [-Wimplicit-function-declaration]`.
* Addressing changes in stricter compiler flags of R-devel resulted
in compiler warning `embedding a directive within macro arguments
has undefined behavior [-Wembedded-directive]`.
## Deprecated and Defunct
* Calling `colRanks()` and `rowRanks()` without explicitly specifying
argument `ties.method` is deprecated since version 1.3.0 [2024-04-10].
If not explicitly specified, a deprecation warning is now produced every
25:th call not specifying the `ties.method` argument.
# Version 1.3.0 [2024-04-10]
## Significant Changes
* `validateIndices()` has been removed. It had been defunct since
version 0.63.0 (2022-11-14).
## Bug Fixes
* Fixed two PROTECT/UNPROTECT issues detected by the 'rchk' tool.
## Deprecated and Defunct
* Calling `colRanks()` and `rowRanks()` without explicitly specifying
argument `ties.method` will be deprecated when using R (>=
4.4.0). The reason is that the current default is `ties.method =
"max"`, but we want to change that to `ties.method = "average"` to
align it with `base::rank()`. In order to minimize the risk for
sudden changes in results, we ask everyone to explicitly specify
their intent. The first notice will be through deprecation
warnings, which will only occur every 50:th call to keep the noise
level down. We will make it more noisy in future releases, and
eventually also escalated to defunct errors.
* Using a scalar value for argument `center` of `colSds()`,
`rowSds()`, `colVars()`, `rowVars()`, `colMads()`, `rowMads()`,
`colWeightedMads()`, and `rowWeightedMads()` is now defunct.
# Version 1.2.0 [2023-12-11]
## Bug Fixes
* Error messages that report on large integers (> 2^31 - 1), would
not render those integers correctly.
## Deprecated and Defunct
* `useNames = NA` is defunct.
# Version 1.1.0 [2023-11-06]
## Deprecated and Defunct
* `useNames = NA` is defunct in R (>= 4.4.0). Remains deprecated in
R (< 4.4.0) for now.
## Miscellaneous
* The deprecation warning for using `useNames = NA`, suggested using
`useNames = TRUE` twice instead of also `useNames = FALSE`.
# Version 1.0.0 [2023-06-01]
## Significant Changes
* `useNames = TRUE` is the new default for all functions. For
backward compatibility, it used to be `useNames = NA`.
* `colQuantiles()` and `rowQuantiles()` gained argument `digits`,
just like `stats::quantile()` gained that argument in R 4.1.0.
* `colQuantiles()` and `rowQuantiles()` only sets quantile percentage
names when `useNames = TRUE`, to align with how argument `names` of
`stats::quantile()` works in base R.
## New Features
* `colMeans2()` and `rowMeans2()` gained argument `refine`. If
`refine = TRUE`, then the sample average for numeric matrices are
calculated using a two-pass scan, resulting in higher precision.
The default is `refine = TRUE` to align it with `colMeans()`, but
also `mean2()` in this package. If the higher precision is not
needed, using `refine = FALSE` will be almost twice as fast.
* `colSds()`, `rowSds()`, `colVars()`, and `rowVars()` gained
argument `refine`. If `refine = TRUE`, then the sample average for
numeric matrices are calculated using a two-pass scan, resulting in
higher precision for the estimate of the center and therefore also
the variance.
## Performance
* Unnecessary checks for missing indices are eliminated, yielding
better performance. This change does not affect user-facing API.
* Made `colQuantiles()` and `rowQuantiles()` a bit faster for `type
!= 7L`, by making sure percentage names are only generated once,
instead of once per column or row.
## Bug Fixes
* Contrary to other functions in the package, and how it works in
base R, functions `colCumsums()`, `colCumprods()`, `colCummins()`,
`colCummaxs()`, `colRanges()`, `colRanks()`, and `colDiffs()`, plus
the corresponding row-based versions, did not drop the `names`
attribute when both row and column names were `NULL`. Now also
these functions behaves the same as the case when neither row or
column names are set.
* `colQuantiles()` and `rowQuantiles()` did not generate quantile
percentage names exactly the same way as `stats::quantile()`, which
would reveal itself for certain combinations of `probs` and
`digits`.
## Deprecated and Defunct
* `useNames = NA` is now deprecated. Use `useNames = TRUE` or
`useNames = FALSE` instead.
# Version 0.63.0 [2022-11-14]
## Miscellaneous
* Package compiles again with older compilers not supporting the C99
standard (e.g. GCC 4.8.5 (2015), which is the default on RHEL /
CentOS 7.9). This was the case also for matrixStats (<= 0.54.0).
* Added more information to the error message produced when argument
`center` for `col-` and `rowVars()` holds an invalid value.
* Fix two compilation warnings on `a function declaration without a
prototype is deprecated in all versions of C
[-Wstrict-prototypes]`.
## Deprecated and Defunct
* `validateIndices()` is now defunct and will eventually be removed
from the package API.
# Version 0.62.0 [2022-04-18]
## New Features
* `colCummins()`, `colCummaxs()`, `rowCummins()`, and `rowCummaxs()`
now support also logical input.
## Miscellaneous
* Updated native code to use the C99 constant `DBL_MAX` instead of
legacy S constant `DOUBLE_XMAX`, which is planned to be unsupported
in R (>= 4.2.0).
# Version 0.61.0 [2021-09-12]
## New Features
* When argument `which` for `colOrderStats()` and `rowOrderStats()`
is out of range, the error message now reports on the value of
`which`. Similarly, when argument `probs` for `colQuantiles()` and
`rowQuantiles()` is out of range, the error message reports on its
value too.
## Deprecated and Defunct
* `validateIndices()` is deprecated and will eventually be removed
from the package API.
## Miscellaneous
* The package test for benchmark reports failed because the
**markdown** package was not declared as a suggested package.
# Version 0.60.1 [2021-08-22]
## Performance
* Handling of the `useNames` argument is now done in the native code.
* Passing `idxs`, `rows`, and `cols` arguments of type integer is now
less efficient than it used to, because the new code re-design (see
below) requires an internal allocation of an equally long
`R_xlen_t` vector that is populated by indices coerced from
`R_len_t` to `R_xlen_t` integers.
## Code Design
* No longer using native-code implementations that are specific to
the type of index that is passed for subsetting of vectors, rows,
and columns. This was done to avoid the complex use of macros that
was cumbersome to maintain and added an extra threshold for new
contributors to overcome. Another advantage is that faster
compilation time when built from source and a smaller size of
compiled library. In previous version `R CMD check` would produce
a NOTE on the package installation size being large, which no
longer is the case. The downside is that extra overhead when
passing integer indices (see above comment).
## Bug Fixes
* Contrary to other functions which gained new argument `useNames =
NA` in the previous release, `colQuantiles()` and `rowQuantiles()`
got `useNames = TRUE`.
# Version 0.60.0 [2021-07-26]
## New Features
* Add row and column names support to all row and column
functions. To return row and column names, set argument `useNames =
TRUE`. To drop them, set `useNames = FALSE`. To preserve the
current, inconsistent behavior, set `useNames = NA`, which, for
backward compatibility reasons, remains the default for now.
# Version 0.59.0 [2021-05-31]
## Miscellaneous
* Harmonized error messages.
## Bug Fixes
* Some of the examples and package tests would allocated matrices
with dimensions that did not match the number of elements in the
input data.
## Deprecated and Defunct
* Dropped `meanOver()` and `sumOver()`, and argument `method` from
`weightedVar()`, that have been defunct since January 2018.
# Version 0.58.0 [2021-01-26]
## Significant Changes
* `colVars()` and `rowVars()` with argument `center` now calculates
the sample variance using the `n/(n-1)*avg((x-center)^2)` formula
rather than the `n/(n-1)*(avg(x^2)-center^2)` formula that was used
in the past. Both give the same result when `center` is the
correct sample mean estimate. The main reason for this change is
that, if an incorrect `center` is provided, in contrast to the old
approach, the new approach is guaranteed to give at least
non-negative results, despite being incorrect. BACKWARD
COMPATIBILITY: Out of all 314 reverse dependencies on CRAN and
Bioconductor, only four called these functions with argument
`center`. All of them pass their package checks also after this
update. To further protect against a negative impact in existing
user scripts, `colVars()` and `rowVars()` will calculate both
versions and assert that the result is the same. If not, an
informative error is produced. To limit the performance impact,
this validation is run only once every 50:th call, a frequency that
can be controlled by R option `matrixStats.vars.formula.freq`.
Setting it to 0 or NULL will disable the validation. The default
can also be controlled by environment variable
`R_MATRIXSTATS_VARS_FORMULA_FREQ`. This validation framework will
be removed in a future version of the package after it has been
established that this change has no negative impact.
## New Features
* Now `colWeightedMads()` and `rowWeightedMads()` accept `center` of
the same length as the number of columns and rows, respectively.
* `colAvgsPerRowSet()` and `rowAvgsPerRowSet()` gained argument
`na.rm`.
* Now `weightedMean()` and `weightedMedian()` and the corresponding
row- and column-based functions accept logical `x`, where FALSE is
treated as integer 0 and TRUE as 1.
* Now `x_OP_y()` and `t_tx_OP_y()` accept logical `x` and `y`, where
FALSE is treated as integer 0 and TRUE as 1.
## Bug Fixes
* `colQuantiles()` and `rowQuantiles()` on a logical matrix should
return a numeric vector for `type = 7`. However, when there were
only missing values (= NA) in the matrix, then it would return a
"logical" vector instead.
* `colAvgsPerRowSet()` on a single-column matrix would produce an
error on non-matching dimensions. Analogously, for
`rowAvgsPerRowSet()` and single- row matrices.
* `colVars(x)` and `rowVars(x)` with `x` being an array would give
the wrong value if both argument `dim.` and `center` would be
specified.
* The documentation was unclear on what the `center` argument should
be. They would not detect when an incorrect specification was used,
notably when the length of `center` did not match the matrix
dimensions. Now these functions give an informative error message
when `center` is of the incorrect length.
## Deprecated and Defunct
* Using a scalar value for argument `center` of `colSds()`,
`rowSds()`, `colVars()`, `rowVars()`, `colMads()`, `rowMads()`,
`colWeightedMads()`, and `rowWeightedMads()` is now deprecated.
# Version 0.57.0 [2020-09-25]
## New Features
* `colCumprods()` and `rowCumprods()` now support also logical
input. Thanks to Constantin Ahlmann-Eltze at EMBL Heidelberg for
the patch.
## Bug Fixes
* `colCollapse()` and `rowCollapse()` did not expand `idxs` argument
before subsetting by `cols` and `rows`, respectively. Thanks to
Constantin Ahlmann-Eltze for reporting on this.
* `colAnys()`, `rowAnys()`, `anyValue()`, `colAlls()`, `rowAlls()`,
and `allValue()` with `value=FALSE` and _numeric_ input would
incorrectly consider all values different from one as FALSE. Now
it is only values that are zero that are considered FALSE. Thanks
to Constantin Ahlmann-Eltze for the bug fix.
# Version 0.56.0 [2020-03-12]
## Significant Changes
* `colQuantiles()` and `rowQuantiles()` now supports only integer,
numeric and logical input. Previously, it was also possible to
pass, for instance, `character` input, but that was a mistake. The
restriction on input allows for further optimization of these
functions.
* The returned type of `colQuantiles()` and `rowQuantiles()` is now
the same as for `stats::quantile()`, which depends on argument
`type`.
## Performance
* `colQuantiles()` and `rowQuantiles()` with the default `type = 7L`
and when there are no missing values are now significantly faster
and use significantly fewer memory allocations.
## Bug Fixes
* `colDiffs()` and `rowDiffs()` gave an error if argument `dim.` was
of type numeric rather than type integer.
* `varDiff()`, `sdDiff()`, `madDiff()`, `iqrDiff()`, and the
corresponding row- and column functions silently treated a `diff`
less than zero as `diff = 0`. Now an error is produced.
* Error messages on argument `dim.` referred to non-existing argument
`dim`.
* Error messages on negative values in argument `dim.` reported a
garbage value instead of the negative value.
* The Markdown reports produced by the internal benchmark report
generator did not add a line between tables and the following text
(a figure caption) causing the following text to be included in a
cell on an extra row in the table (at least when rendered on GitHub
Wiki pages).
# Version 0.55.0 [2019-09-05]
## Significant Changes
* `weightedVar()`, `weightedSd()`, `weightedMad()`, and their row-
and column- specific counter parts now return a missing value if
there are missing values in any of the weights `w` after possibly
dropping (`x`, `w`) elements with missing values in `x` (`na.rm =
TRUE`). Previously, `na.rm = TRUE` would also drop (`x`, `w`)
elements where `w` was missing. With this change, we now have that
for all functions in this package, `na.rm = TRUE` never applies to
weights - only `x` values.
## New Features
* `colRanks()` and `rowRanks()` now supports the same set of
`ties.method` as `base::rank()` plus `"dense"` as defined by
`data.table::frank()`. For backward compatible reasons, the default
`ties.method` remains the same as in previous versions. Thank to
Brian Montgomery for contributing this.
* `colCumsums()` and `rowCumsums()` now support also logical input.
## Bug Fixes
* `weightedVar()`, `weightedSd()`, `weightedMad()`, and their row-
and column- specific counter parts would produce an error instead
of returning a missing value when one of the weights is a missing
value.
## Deprecated and Defunct
* Calling `indexByRow(x)` where `x` is a matrix is now defunct. Use
`indexByRow(dim(x))` instead.
# Version 0.54.0 [2018-07-23]
## Performance
* SPEEDUP: No longer using `stopifnot()` for internal validation,
because it comes with a great overhead. This was only used in
`weightedMad()`, `col-`, and `rowWeightedMads()`, as well as `col-`
and `rowAvgsPerColSet()`.
## Bug Fixes
* Despite being an unlikely use case, `colLogSumExps(lx)` /
`rowLogSumExps(lx)` now also accepts integer `lx` values.
* The error produced when using `indexByRow(dim)` with `prod(dim) >=
2^31` would report garbage dimensions instead of `dim`.
## Deprecated and Defunct
* Calling `indexByRow(x)`, where `x` is a matrix, is deprecated. Use
`indexByRow(dim(x))` instead.
# Version 0.53.1 [2018-02-10]
## Code Refactoring
* Now `col-`/`rowSds()` explicitly replicate all arguments that are
passed to `col-`/`rowVars()`.
## Documentation
* Added details on how `weightedMedian(x, interpolate = TRUE)` works.
## Bug Fixes
* `colLogSumExps(lx, cols)` / `rowLogSumExps(lx, rows)` gave an error
if `lx` has rownames / colnames.
* `col-`/`rowQuantiles()` would lose rownames of output in certain
cases.
# Version 0.53.0 [2018-01-23]
## New Features
* Functions `sum2(x)` and `means2(x)` now accept also logical input
`x`, which corresponds to using `as.integer(x)` but without the need
for neither coercion nor internal extra copies. With `sum2(x, mode =
"double")` it is possible to count number of TRUE elements beyond
2^31-1, which `base::sum()` does not support.
* Functions `col-`/`rowSums2()` and `col-`/`rowMeans2()` now accept
also logical input `x`.
* Function `binMeans(y, x, bx)` now accepts logical `y`, which
corresponds to to using `as.integer(y)`, but without the need for
coercion to integer.
* Functions `col-`/`rowTabulates(x)` now support logical input `x`.
* Now `count()` can count beyond 2^31-1.
* `allocVector()` can now allocate long vectors (longer than 2^31-1).
* Now `sum2(x, mode = "integer")` generates a warning if `typeof(x)
== "double"` asking if `as.integer(sum2(x))` was intended.
* Inspired by `Hmisc::wtd.var()`, when `sum(w) <= 1`, `weightedVar(x,
w)` now produces an informative warning that the estimate is
invalid.
## Code Refactoring
* Harmonized the ordering of the arguments of `colAvgsPerColSet()`
with that of `rowAvgsPerColSet()`.
## Bug Fixes
* `col-`/`rowLogSumExp()` could core dump R for "large" number of
columns/rows. Thanks Brandon Stewart at Princeton University for
reporting on this.
* `count()` beyond 2^31-1 would return invalid results.
* Functions `col-`/`rowTabulates(x)` did not count missing values.
* `indexByRow(dim, idxs)` would give nonsense results if `idxs` had
indices greater than `prod(dim)` or non-positive indices; now it
gives an error.
* `indexByRow(dim)` would give nonsense results when `prod(dim) >=
2^31`; now it gives an informative error.
* `col-`/`rowAvgsPerColSet()` would return vector rather than matrix
if `nrow(X) <= 1`. Thanks to Peter Hickey (Johns Hopkins
University) for troubleshooting and providing a fix.
## Deprecated and Defunct
* Previously deprecated `meanOver()` and `sumOver()` are defunct. Use
`mean2()` and `sum2()` instead.
* Previously deprecated `weightedVar(x, w, method = "0.14.2")` is defunct.
* Dropped previously defunct `weightedMedian(..., ties = "both")`.
* Dropped previously defunct argument `centers` for
`col-`/`rowMads()`. Use `center` instead.
* Dropped previously defunct argument `flavor` of `colRanks()` and
`rowRanks()`.
# Version 0.52.2 [2017-04-13]
## Bug Fixes
* Several of the row- and column-based functions would core dump R if the
matrix was of a data type other than logical, integer, or numeric, e.g.
character or complex. This is now detected and an informative error is
produced instead. Similarly, some vector-based functions could potentially
core dump R or silently return a nonsense result. Thank you Hervé Pagès,
Bioconductor Core, for the report.
## Deprecated and Defunct
* `rowVars(..., method = "0.14.2")` that was added for very unlikely
needs of backward compatibility of an invalid degree-of-freedom
term is deprecated.
# Version 0.52.1 [2017-04-04]
## Bug Fixes
* The package test on `matrixStats:::benchmark()` tried to run even
if not all suggested packages were available.
# Version 0.52.0 [2017-04-03]
## Significant Changes
* Since `anyNA()` is a built-in function since R (>= 3.1.0), please
use that instead of `anyMissing()` part of this package. The
latter will eventually be deprecated. For consistency with the
`anyNA()` name, `colAnyNAs()` and `rowAnyNAs()` are now also
available replacing the identically `colAnyMissings()` and
`rowAnyMissings()` functions, which will also be deprecated in a
future release.
* `meanOver()` was renamed to `mean2()` and `sumOver()` was renamed
to `sum2()`.
## New Features
* Added `colSums2()` and `rowSums2()` which work like `colSums()` and
`rowSums()` of the **base** package but also supports efficient
subsetting via optional arguments `rows` and `cols`.
* Added `colMeans2()` and `rowMeans2()` which work like `colMeans()`
and `rowMeans()` of the **base** package but also supports efficient
subsetting via optional arguments `rows` and `cols`.
* Functions `colDiffs()` and `rowDiffs()` gained argument `dim.`.
* Functions `colWeightedMads()` and `rowWeightedMads()` gained
arguments `constant` and `center`. The current implementation only
support scalars for these arguments, which means that the same
values are applied to all columns and rows, respectively. In
previous version a hard-to-understand error would be produced if
`center` was of length greater than one; now an more informative
error message is given.
* Package is now silent when loaded; it no longer displays a startup
message.
## Software Quality
* Continuous-integration testing is now also done on macOS, in
addition to Linux and Windows.
* ROBUSTNESS: Package now registers the native API using also
`R_useDynamicSymbols()`.
## Code Refactoring
* Cleaned up native low-level API and renamed native source code files
to make it easier to navigate the native API.
* Now using **roxygen2** for help and NAMESPACE (was `R.oo::Rdoc`).
## Bug Fixes
* `rowAnys(x)` on numeric matrices `x` would return `rowAnys(x == 1)`
and not `rowAnys(x != 0)`. Same for `colAnys()`, `rowAlls()`, and
`colAlls()`. Thanks Richard Cotton for reporting on this.
* `sumOver(x)` and `meanOver(x)` would incorrectly return -Inf or
+Inf if the intermediate sum would have that value, even if one
of the following elements would turn the intermediate sum into
NaN or NA, e.g. with `x` as `c(-Inf, NaN)`, `c(-Inf, +Inf)`, or
`c(+Inf, NA)`.
* WORKAROUND: Benchmark reports generated by
`matrixStats:::benchmark()` would use any custom R prompt that is
currently set in the R session, which may not render very well.
Now it forces the prompt to be the built-in `"> "` one.
## Deprecated and Defunct
* The package API is only intended for matrices and vectors of type
numeric, integer and logical. However, a few functions would still
return if called with a data.frame. This was never intended to
work and is now an error. Specifically, functions `colAlls()`,
`colAnys()`, `colProds()`, `colQuantiles()`, `colIQRs()`,
`colWeightedMeans()`, `colWeightedMedians()`, and `colCollapse()`
now produce warnings if called with a data.frame. Same for the
corresponding row- functions. The use of a `data.frame will be
produce an error in future releases.
* `meanOver()` and `sumOver()` are deprecated because they were
renamed to `mean2()` and `sum2()`, respectively.
* Previously deprecated (and ignored) argument `flavor` of
`colRanks()` and `rowRanks()` is now defunct.
* Previously deprecated support for passing non-vector, non-matrix
objects to `rowAlls()`, `rowAnys()`, `rowCollapse()`, and the
corresponding column-based versions are now defunct. Likewise,
`rowProds()`, `rowQuantiles()`, `rowWeightedMeans()`,
`rowWeightedMedians()`, and the corresponding column-based versions
are also defunct. The rationale for this is to tighten up the
identity of the **matrixStats** package and what types of input it
accepts. This will also help optimize the code further.
# Version 0.51.0 [2016-10-08]
## Performance and Memory
* SPEEDUP / CLEANUP: `rowMedians()` and `colMedians()` are now plain
functions. They were previously S4 methods (due to a Bioconductor
legacy). The package no longer imports the **methods** package.
* SPEEDUP: Now native API is formally registered allowing for faster
lookup of routines from R.
# Version 0.50.2 [2016-04-24]
## Bug Fixes
* Package now installs on R (>= 2.12.0) as claimed. Thanks to Mikko
Korpela at Aalto University School of Science, Finland, for
troubleshooting and providing a fix.
* `logSumExp(c(-Inf, -Inf, ...))` would return NaN rather than
`-Inf`. Thanks to Jason Xu (University of Washington) for reporting
and Brennan Vincent for troubleshooting and contributing a fix.
# Version 0.50.1 [2015-12-14]
## Bug Fixes
* The Undefined Behavior Sanitizer (UBsan) reported on a
`memcall(src, dest, 0)` call when `dest == null`. Thanks to Brian
Ripley and the CRAN check tools for catching this. We could
reproduce this with gcc 5.1.1 but not with gcc 4.9.2.
# Version 0.50.0 [2015-12-13]
## New Features
* MAJOR FEATURE UPDATE: Subsetting arguments `idxs`, `rows` and
`cols` were added to all functions such that the calculations are
performed on the requested subset while avoiding creating a
subsetted copy, i.e. `rowVars(x, cols = 4:6)` is a much faster and
more memory efficient version than `rowVars(x[, 4:6])` and even yet
more efficient than `apply(x, MARGIN = 1L, FUN = var)`. These
features were added by Dongcan Jiang, Peking University, with
support from the Google Summer of Code program. A great thank you
to Dongcan and to Google for making this possible.
# Version 0.15.0 [2015-10-26]
## New Features
* CONSISTENCY: Now all weight arguments (`w` and `W`) default to
NULL, which corresponds to uniform weights.
## Code Refactoring
* ROBUSTNESS: Importing **stats** functions in namespace.
## Bug Fixes
* `weightedVar(x, w)` used the wrong bias correction factor resulting
in an estimate that was tau too large, where `tau = ((sum(w) - 1) /
sum(w)) / ((length(w) - 1) / length(w))`. Thanks to Wolfgang Abele
for reporting and troubleshooting on this.
* `weightedVar(x)` with `length(x) = 1` returned 0 - not NA. Same for
`weightedSd()`.
* `weightedMedian(x, w = NA_real_)` returned `x` rather than
`NA_real_`. This only happened for `length(w) = 1`.
* `allocArray(dim)` failed for `prod(dim) >= .Machine$integer.max`.
## Deprecated and Defunct
* CLEANUP: Defunct argument `centers` for `col-`/`rowMads()`; use
`center`.
* `weightedVar(x, w, method = "0.14.2")` is deprecated.
# Version 0.14.2 [2015-06-23]
## Bug Fixes
* `x_OP_y()` and `t_tx_OP_y()` would return garbage on Solaris SPARC
(and possibly other architectures as well) when input was integer
and had missing values.
# Version 0.14.1 [2015-06-17]
## Bug Fixes
* `product(x, na.rm = FALSE)` for integer `x` with both zeros and NAs
returned zero rather than NA.
* `weightedMean(x, w, na.rm = TRUE)` did not handle missing values in
`x` properly, if it was an integer. It would also return NaN if
there were weights `w` with missing values, whereas
`stats::weighted.mean()` would skip such data points. Now
`weightedMean()` does the same.
* `(col|row)WeightedMedians()` did not handle infinite weights as
`weightedMedian()` does.
* `x_OP_y(x, y, OP, na.rm = FALSE)` returned garbage iff `x` or `y`
had missing values of type integer.
* `rowQuantiles()` and `rowIQRs()` did not work for single-row
matrices. Analogously for the corresponding column functions.
* `rowCumsums()`, `rowCumprods()` `rowCummins()`, and `rowCummaxs()`,
accessed out-of-bound elements for Nx0 matrices where N > 0. The
corresponding column methods has similar memory errors for 0xK
matrices where K > 0.
* `anyMissing(list(NULL))` returned NULL; now FALSE.
* `rowCounts()` resulted in garbage if a previous column had NAs
(because it forgot to update index kk in such cases).
* `rowCumprods(x)` handled missing values and zeros incorrectly for
integer `x` (not double); a zero would trump an existing missing
value causing the following cumulative products to become zero. It
was only a zero that trumped NAs; any other integer would work as
expected. Note, this bug was not in `colCumprods()`.
* `rowAnys(x, value, na.rm = FALSE)` did not handle missing values in
a numeric `x` properly. Similarly, for non-numeric and non-logical
`x`, row- and `colAnys()`, row- and `colAlls()`, `anyValue()` and
`allValue()` did not handle when `value` was a missing value.
* All of the above bugs were identified and fixed by Dongcan Jiang (Peking
University, China), who also added corresponding unit tests.
# Version 0.14.0 [2015-02-13]
## Significant Changes
* CLEANUP: `anyMissing()` is no longer an S4 generic. This was done
as part of the migration of making all functions of **matrixStats**
plain R functions, which minimizes calling overhead and it will
also allow us to drop **methods** from the package dependencies.
I've scanned all CRAN and Bioconductor packages depending on
**matrixStats** and none of them relied on `anyMissing()` dispatching
on class, so hopefully this move has little impact. The only
remaining S4 methods are now `colMedians()` and `rowMedians()`.
## New Features
* CONSISTENCY: Renamed argument `centers` of `col-`/`rowMads()` to
`center`. This is consistent with `col-`/`rowVars()`.
* CONSISTENCY: `col-`/`rowVars()` now use `na.rm = FALSE` as the
default (`na.rm = TRUE` was mistakenly introduced as the default in
v0.9.7).
## Performance and Memory
* SPEEDUP: The check for user interrupts at the C level is now done
less frequently of the functions. It does every k:th iteration,
where `k = 2^20`, which is tested for using (`iter % k == 0`). It
turns out, at least with the default compiler optimization settings
that I use, that this test is 3 times faster if `k = 2^n` where n is
an integer. The following functions checks for user interrupts:
`logSumExp()`, `(col|row)LogSumExps()`, `(col|row)Medians()`,
`(col|row)Mads()`, `(col|row)Vars()`, and
`(col|row)Cum(Min|Max|prod|sum)s()`.
* SPEEDUP: `logSumExp(x)` is now faster if `x` does not contain any
missing values. It is also faster if all values are missing or the
maximum value is +Inf - in both cases it can skip the actual
summation step.
## Software Quality
* ROBUSTNESS/TESTS: Package tests cover 96% of the code (was 91%).
## Code Refactoring
* CLEANUP: Package no longer depends on **R.methodsS3**.
## Bug Fixes
* `all()` and `any()` flavored methods on non-numeric and non-logical
(e.g. character) vectors and matrices with `na.rm = FALSE` did not
give results consistent with `all()` and `any()` if there were
missing values. For example, with `x <- c("a", NA, "b")` we have
`all(x == "a") == FALSE` and `any(x == "a") == TRUE`, whereas our
corresponding methods would return NA in those cases. The methods
fixed are `allValue()`, `anyValue()`, `col-`/`rowAlls()`, and
`col-`/`rowAnys()`. Added more package tests to cover these cases.
* `logSumExp(x, na.rm = TRUE)` would return NA if all values were NA
and `length(x) > 1`. Now it returns -Inf for all `length(x)`:s.
# Version 0.13.1 [2015-01-21]
## Bug Fixes
* `diff2()` with `differences >= 3` would _read_ spurious values
beyond the allocated memory. This error, introduced in 0.13.0, was
harmless in the sense that the returned value was unaffected and
still correct. Thanks to Brian Ripley and the CRAN check tools for
catching this. I could reproduce it locally with valgrind.
# Version 0.13.0 [2015-01-20]
## Significant Changes
* SPEEDUP/CLEANUP: Turned several S3 and S4 methods into plain R
functions, which decreases the overhead of calling the functions.
After this there are no longer any S3 methods. Remaining S4
methods are `anyMissing()` and `rowMedians()`.
## New Features
* Added `weightedMean()`, which is ~10 times faster than
`stats::weighted.mean()`.
* Added `count(x, value)` which is a notably faster than `sum(x ==
value)`. This can also be used to count missing values etc.
* Added `allValue()` and `anyValue()` for `all(x == value)` and
`any(x == value)`.
* Added `diff2()`, which is notably faster than `base::diff()` for
vectors, which it is designed for.
* Added `iqrDiff()` and `(col|row)IqrDiffs()`.
* CONSISTENCY: Now `rowQuantiles(x, na.rm = TRUE)` returns all NAs
for rows with missing values. Analogously for `colQuantiles()`,
`colIQRs()`, `rowIQRs()` and `iqr()`. Previously, all these
functions gave an error saying missing values are not allowed.
* COMPLETENESS: Added corresponding "missing" vector functions for
already existing column and row functions. Similarly, added
"missing" column and row functions for already existing vector
functions, e.g. added `iqr()` and `count()` to complement already
existing `(col|row)IQRs()` and `(col|row)Counts()` functions.
* ROBUSTNESS: Now column and row methods give slightly more
informative error messages if a data.frame is passed instead of a
matrix.
## Documentation
* Added vignette summarizing available functions.
## Performance and Memory
* SPEEDUP: `(col|row)Diffs()` are now implemented in native code and
notably faster than `diff()` for matrices.
* SPEEDUP: Made `binCounts()` and `binMeans()` a bit faster.
* SPEEDUP: Implemented `weightedMedian()` in native code, which made
it ~3-10 times faster. Dropped support for `ties = "both"`,
because it would have to return two values in case of ties, which
made the API unnecessarily complicated. If really needed, then
call the function twice with `ties = "min"` and `ties = "max"`.
* SPEEDUP: `(col|row)Anys()` and `(col|row)Alls()` is now notably
faster compared to previous versions.
## Code Refactoring
* CLEANUP: In the effort of migrating `anyMissing()` into a plain R
function, the specific `anyMissing()` implementations for
data.frame:s and and list:s were dropped and is now handled by
`anyMissing()` for `"ANY"`, which is the only S4 method remaining
now. In a near future release, this remaining `"ANY"` method will
turned into a plain R function and the current S4 generic will be
dropped. We know of no CRAN and Bioconductor packages that rely on
it being a generic function. Note also that since R (>= 3.1.0)
there is a `base::anyNA()` function that does the exact same thing
making `anyMissing()` obsolete.
## Bug Fixes
* `weightedMedian(..., ties = "both")` would give an error if there
was a tie. Added package test for this case.
## Deprecated and Defunct
* `weightedMedian(..., ties = "both")` is now defunct.
# Version 0.12.2 [2014-12-07]
## Bug Fixes
* CODE FIX: The native code for `product()` on integer vector
incorrectly used C-level `abs()` on intermediate values despite
those being doubles requiring `fabs()`. Despite this, the
calculated product would still be correct (at least when validated
on several local setups as well as on the CRAN servers). Again,
thanks to Brian Ripley for pointing out another invalid
integer-double coercion at the C level.
## Deprecated and Defunct
* `weightedMedian(..., interpolate = FALSE, ties = "both")` is
defunct.
# Version 0.12.1 [2014-12-06]
## Software Quality
* ROBUSTNESS: Updated package tests to check methods in more scenarios,
especially with both integer and numeric input data.
## Bug Fixes
* `(col|row)Cumsums(x)` where `x` is integer would return garbage for
columns (rows) containing missing values.
* `rowMads(x)` where `x` is numeric (not integer) would give
incorrect results for rows that had an _odd_ number of values (no
ties). Analogously issues with `colMads()`. Added package tests
for such cases too. Thanks to Brian Ripley and the CRAN check
tools for (yet again) catching another coding mistake. Details:
This was because the C-level calculation of the absolute value of
residuals toward the median would use integer-based `abs()` rather
than double-based `fabs()`. Now it `fabs()` is used when the values
are double and `abs()` when they are integers.
# Version 0.12.0 [2014-12-05]
* Submitted to CRAN.
# Version 0.11.9 [2014-11-26]
## New Features
* Added `(col|row)Cumsums()`, `(col|row)Cumprods()`,
`(col|row)Cummins()`, and `(col|row)Cummaxs()`.
## Bug Fixes
* `(col|row)WeightedMeans()` with all zero weights gave mean
estimates with values 0 instead of NaN.
# Version 0.11.8 [2014-11-25]
## Performance and Memory
* SPEEDUP: Implemented `(col|row)Mads()`, `(col|row)Sds()`, and
`(col|row)Vars()` in native code.
* SPEEDUP: Made `(col|row)Quantiles(x)` faster for `x` without
missing values (and default `type = 7L` quantiles). It should
still be implemented in native code though.
* SPEEDUP: Made `rowWeightedMeans()` faster.
## Bug Fixes
* `(col|row)Medians(x)` when `x` is integer would give invalid median
values in case (a) it was calculated as the mean of two values
("ties"), and (b) the sum of those values where greater than
`.Machine$integer.max`. Now such ties are calculated using
floating point precision. Add lots of package tests.
# Version 0.11.6 [2014-11-16]
## Performance and Memory
* SPEEDUP: Now `(col|row)Mins()`, `(col|row)Maxs()`, and
`(col|row)Ranges()` are implemented in native code providing a
significant speedup.
* SPEEDUP: Now `colOrderStats()` also is implemented in native code,
which indirectly makes `colMins()`, `colMaxs()` and `colRanges()`
faster.
* SPEEDUP: `colTabulates(x)` no longer uses `rowTabulates(t(x))`.
* SPEEDUP: `colQuantiles(x)` no longer uses `rowQuantiles(t(x))`.
## Deprecated and Defunct
* CLEANUP: Argument `flavor` of `(col|row)Ranks()` is now ignored.
# Version 0.11.5 [2014-11-15]
## Significant Changes
* `(col|row)Prods()` now uses default `method = "direct"` (was
`"expSumLog"`).
## Performance and Memory
* SPEEDUP: Now `colCollapse(x)` no longer utilizes
`rowCollapse(t(x))`. Added package tests for `(col|row)Collapse()`.
* SPEEDUP: Now `colDiffs(x)` no longer uses `rowDiffs(t(x))`. Added
package tests for `(col|row)Diffs()`.
* SPEEDUP: Package no longer utilizes `match.arg()` due to its
overhead; methods `sumOver()`, `(col|row)Prods()` and
`(col|row)Ranks()` were updated.
# Version 0.11.4 [2014-11-14]
## New Features
* Added support for vector input to several of the row- and column
methods as long as the "intended" matrix dimension is specified via
argument `dim`. For instance, `rowCounts(x, dim = c(nrow, ncol))`
is the same as `rowCounts(matrix(x, nrow, ncol))`, but more
efficient since it avoids creating/allocating a temporary matrix.
## Performance and Memory
* SPEEDUP: Now `colCounts()` is implemented in native code.
Moreover, `(col|row)Counts()` are now also implemented in native
code for logical input (previously only for integer and double
input). Added more package tests and benchmarks for these
functions.
# Version 0.11.3 [2014-11-11]
## Significant Changes
* Turned `sdDiff()`, `madDiff()`, `varDiff()`, `weightedSd()`,
`weightedVar()` and `weightedMad()` into plain functions (were
generic functions).
## Code Refactoring
* Removed unnecessary usage of `::`.
# Version 0.11.2 [2014-11-09]
## Significant Changes
* SPEEDUP: Implemented `indexByRow()` in native code and it is no
longer a generic function, but a regular function, which is also
faster to call. The first argument of `indexByRow()` has been
changed to `dim` such that one should use `indexByRow(dim(X))`
instead of `indexByRow(X)` as in the past. The latter form is
still supported, but deprecated.
## New Features
* Added `allocVector()`, `allocMatrix()`, and `allocArray()` for
faster allocation numeric vectors, matrices and arrays,
particularly when filled with non-missing values.
## Deprecated and Defunct
* Calling `indexByRow(X)` with a matrix `X` is deprecated. Instead
call it with `indexByRow(dim(X))`.
# Version 0.11.1 [2014-11-07]
## New Features
* Better support for long vectors.
* PRECISION: Using greater floating-point precision in more internal
intermediate calculations, where possible.
## Software Quality
* ROBUSTNESS: Although unlikely, with long vectors support for
`binCounts()` and `binMeans()` it is possible that a bin gets a
higher count than what can be represented by an R integer
(`.Machine$integer.max = 2^31-1`). If that happens, an informative
warning is generated and the bin count is set to
`.Machine$integer.max`. If this happens for `binMeans()`, the
corresponding mean is still properly calculated and valid.
## Code Refactoring
* CLEANUP: Cleanup and harmonized the internal C API such there are
two well defined API levels. The high-level API is called by R via
`.Call()` and takes care of most of the argument validation and
construction of the return value. This function dispatch to
functions in the low-level API based on data type(s) and other
arguments. The low-level API is written to work with basic C data
types only.
## Bug Fixes
* Package incorrectly redefined `R_xlen_t` on R (>= 3.0.0) systems
where `LONG_VECTOR_SUPPORT` is not supported.
# Version 0.11.0 [2014-11-02]
## New Features
* Added `sumOver()` and `meanOver()`, which are notably faster
versions of `sum(x[idxs])` and `mean(x[idxs])`. Moreover, instead
of having to do `sum(as.numeric(x))` to avoid integer overflow when
`x` is an integer vector, one can do `sumOver(x, mode =
"numeric")`, which avoids the extra copy created when coercing to
numeric (this numeric copy is also twice as large as the integer
vector). Added package tests and benchmark reports for these
functions.
# Version 0.10.4 [2014-11-01]
## Performance and Memory
* SPEEDUP: Made `anyMissing()`, `logSumExp()`, `(col|row)Medians()`,
and `(col|row)Counts()` slightly faster by making the native code
assign the results directly to the native vector instead of to the
R vector, e.g. `ansp[i] = v` where `ansp = REAL(ans)` instead of
`REAL(ans)[i] = v`.
* Added benchmark reports for `anyMissing()` and `logSumExp()`.
# Version 0.10.3 [2014-10-01]
## Bug Fixes
* `binMeans()` returned 0.0 instead of `NA_real_` for empty bins.
# Version 0.10.2 [2014-09-01]
## Bug Fixes
* On some systems, the package failed to build on R (<= 2.15.3) with
compilation error: `"redefinition of typedef 'R_xlen_t'"`.
# Version 0.10.1 [2014-06-09]
## Performance and Memory
* Added benchmark reports for also non-**matrixStats** functions
`col-`/`rowSums()` and `col-`/`rowMeans()`.
* Now all `colNnn()` and `rowNnn()` methods are benchmarked in a
combined report making it possible to also compare `colNnn(x)` with
`rowNnn(t(x))`.
# Version 0.10.0 [2014-06-07]
## Software Quality
* Relaxed some packages tests such that they assert numerical
correctness via `all.equal()` rather than `identical()`.
* Submitted to CRAN.
## Bug Fixes
* The package tests for `product()` incorrectly assumed that the
value of `prod(c(NaN, NA))` is uniquely defined. However, as
documented in `help("is.nan")`, it may be NA or NaN depending on R
system/platform.
# Version 0.9.7 [2014-06-05]
## Bug Fixes
* Introduced a bug in v0.9.5 causing `col-`/`rowVars()` and hence
also `col-`/`rowSds()` to return garbage. Add package tests for
these now.
* Submitted to CRAN.
# Version 0.9.6 [2014-06-04]
## New Features
* Added `signTabulate()` for tabulating the number of negatives,
zeros, positives and missing values. For doubles, the number of
negative and positive infinite values are also counted.
## Performance and Memory
* SPEEDUP: Now `col-`/`rowProds()` utilizes new `product()` function.
* SPEEDUP: Added `product()` for calculating the product of a numeric
vector via the logarithm.
# Version 0.9.5 [2014-06-04]
## Significant Changes
* SPEEDUP: Made `weightedMedian()` a plain function (was an S3
method).
* CLEANUP: Now only exporting plain functions and generic functions.
* SPEEDUP: Turned more S4 methods into S3 methods,
e.g. `rowCounts()`, `rowAlls()`, `rowAnys()`, `rowTabulates()` and
`rowCollapse()`.
## New Features
* Added argument `method` to `col-`/`rowProds()` for controlling how
the product is calculated.
## Performance and Memory
* SPEEDUP: Package is now byte compiled.
* SPEEDUP: Made `rowProds()` and `rowTabulates()` notably faster.
* SPEEDUP: Now `rowCounts()`, `rowAnys()`, `rowAlls()` and
corresponding column methods can search for any value in addition
to the default TRUE. The search for a matching integer or double
value is done in native code, which is notably faster (and more
memory efficient because it avoids creating any new objects).
* SPEEDUP: Made `colVars()` and `colSds()` notably faster and
`rowVars()` and `rowSds()` a slightly bit faster.
* Added benchmark reports, e.g. `matrixStats:::benchmark("colMins")`.
# Version 0.9.4 [2014-05-23]
## Significant Changes
* SPEEDUP: Turned several S4 methods into S3 methods,
e.g. `indexByRow()`, `madDiff()`, `sdDiff()` and `varDiff()`.
# Version 0.9.3 [2014-04-26]
## New Features
* Added argument `trim` to `madDiff()`, `sdDiff()` and `varDiff()`.
# Version 0.9.2 [2014-04-04]
## Bug Fixes
* The native code of `binMeans(x, bx)` would try to access an
out-of-bounds value of argument `y` iff `x` contained elements that
are left of all bins in `bx`. This bug had no impact on the
results and since no assignment was done it should also not
crash/core dump R. This was discovered thanks to new memtests
(ASAN and valgrind) provided by CRAN.
# Version 0.9.1 [2014-03-31]
## Bug Fixes
* `rowProds()` would throw `"Error in rowSums(isNeg) : `x` must be an
array of at least two dimensions"` on matrices where all rows
contained at least one zero. Thanks to Roel Verbelen at KU Leuven
for the report.
# Version 0.9.0 [2014-03-26]
## New Features
* Added `weighedVar()` and `weightedSd()`.
# Version 0.8.14 [2013-11-23]
## Performance and Memory
* MEMORY: Updated all functions to do a better job of cleaning out
temporarily allocated objects as soon as possible such that the
garbage collector can remove them sooner, iff wanted. This
increase the chance for a smaller memory footprint.
* Submitted to CRAN.
# Version 0.8.13 [2013-10-08]
## New Features
* Added argument `right` to `binCounts()` and `binMeans()` to specify
whether binning should be done by (u,v] or [u,v). Added system
tests validating the correctness of the two cases.
## Code Refactoring
* Bumped up package dependencies.
# Version 0.8.12 [2013-09-26]
## Performance and Memory
* SPEEDUP: Now utilizing `anyMissing()` everywhere possible.
# Version 0.8.11 [2013-09-21]
## Software Quality
* ROBUSTNESS: Now importing `loadMethod` from **methods** package
such that **matrixStats** S4-based methods also work when
**methods** is not loaded, e.g. when `Rscript` is used,
cf. Section 'Default packages' in 'R Installation and
Administration'.
* ROBUSTNESS: Updates package system tests such that the can run with
only the **base** package loaded.
# Version 0.8.10 [2013-09-15]
## Code Refactoring
* CLEANUP: Now only importing two functions from the **methods**
package.
* Bumped up package dependencies.
# Version 0.8.9 [2013-08-29]
## New Features
* CLEANUP: Now the package startup message acknowledges argument
`quietly` of `library()`/`require()`.
# Version 0.8.8 [2013-07-29]
## Documentation
* The dimension of the return value was swapped in
`help("rowQuantiles")`.
# Version 0.8.7 [2013-07-28]
## Performance and Memory
* SPEEDUP: Made `(col|row)Mins()` and `(col|row)Maxs()` much faster.
## Bug Fixes
* `rowRanges(x)` on an Nx0 matrix would give an error. Same for
`colRanges(x)` on an 0xN matrix. Added system tests for these and
other special cases.
# Version 0.8.6 [2013-07-20]
## Code Refactoring
* Bumped up package dependencies.
## Bug Fixes
* Forgot to declare S3 methods `(col|row)WeightedMedians()`.
# Version 0.8.5 [2013-05-25]
## Performance and Memory
* Minor speedup of `(col|row)Tabulates()` by replacing `rm()` calls
with NULL assignments.
# Version 0.8.4 [2013-05-20]
## Documentation
* CRAN POLICY: Now all Rd `\usage{}` lines are at most 90 characters
long.
# Version 0.8.3 [2013-05-10]
## Performance and Memory
* SPEEDUP: `binCounts()` and `binMeans()` now uses Hoare's Quicksort for
presorting `x` before counting/averaging. They also no longer test in
every iteration (== for every data point) whether the last bin has been
reached or not, but only after completing a bin.
# Version 0.8.2 [2013-05-02]
## Documentation
* Minor corrections and updates to help pages.
# Version 0.8.1 [2013-05-02]
## Bug Fixes
* Native code of `logSumExp()` used an invalid check for missing
value of an integer argument. Detected by Brian Ripley upon CRAN
submission.
# Version 0.8.0 [2013-05-01]
## New Features
* Added `logSumExp(lx)` and `(col|row)LogSumExps(lx)` for accurately
computing of `log(sum(exp(lx)))` for standalone vectors, and row
and column vectors of matrices. Thanks to Nakayama (Japan) for the
suggestion and contributing a draft in R.
# Version 0.7.1 [2013-04-23]
## New Features
* Added argument `preserveShape` to `colRanks()`. For backward
compatibility the default is `preserveShape = FALSE`, but it may
change in the future.
## Bug Fixes
* Since v0.6.4, `(col|row)Ranks()` gave the incorrect results for
integer matrices with missing values.
* Since v0.6.4, `(col|row)Medians()` for integers would calculate
ties as `floor(tieAvg)`.
# Version 0.7.0 [2013-01-14]
## New Features
* Now `(col|row)Ranks()` support `"max"` (default), `"min"` and
`"average"` for argument `ties.method`. Added system tests
validation these cases. Thanks Peter Langfelder (UCLA) for
contributing this.
# Version 0.6.4 [2013-01-13]
## New Features
* Added argument `ties.method` to `rowRanks()` and `colRanks()`, but
still only support for `"max"` (as before).
## Code Refactoring
* ROBUSTNESS: Lots of cleanup of the internal/native code. Native code for
integer and double cases have been harmonized and are now generated from a
common code template. This was inspired by code contributions from Peter
Langfelder (UCLA).
# Version 0.6.3 [2013-01-13]
## New Features
* Added `anyMissing()` for data type `raw`, which always returns FALSE.
## Software Quality
* ROBUSTNESS: Added system test for `anyMissing()`.
* ROBUSTNESS: Now S3 methods are declared in the namespace.
# Version 0.6.2 [2012-11-15]
## Software Quality
* CRAN POLICY: Made `example(weightedMedian)` faster.
# Version 0.6.1 [2012-10-10]
## Bug Fixes
* In some cases `binCounts()` and `binMeans()` could try to go past
the last bin resulting a core dump.
* `binCounts()` and `binMeans()` would return random/garbage values
for bins that were beyond the last data point.
# Version 0.6.0 [2012-10-04]
## New Features
* Added `binMeans()` for fast sample-mean calculation in bins.
Thanks to Martin Morgan at the Fred Hutchinson Cancer Research
Center, Seattle, for contributing the core code for this.
* Added `binCounts()` for fast element counting in bins.
# Version 0.5.3 [2012-09-10]
## Software Quality
* CRAN POLICY: Replaced the `.Internal(psort(...))` call with a call
to a new internal partial sorting function, which utilizes the
native `rPsort()` part of the R internals.
# Version 0.5.2 [2012-07-02]
## Code Refactoring
* Updated package dependencies to match CRAN.
# Version 0.5.1 [2012-06-25]
## New Features
* GENERALIZATION: Now `(col|row)Prods()` handle missing values.
## Code Refactoring
* Package now only imports the **methods** package.
## Bug Fixes
* In certain cases, `(col|row)Prods()` would return NA instead of 0
for some elements. Added a redundancy test for the case. Thanks
Brenton Kenkel at University of Rochester for reporting on this.
# Version 0.5.0 [2012-04-16]
## New Features
* Added `weightedMad()` from **aroma.core** v2.5.0.
* Added `weightedMedian()` from **aroma.light** v1.25.2.
## Code Refactoring
* This package no longer depends on the **aroma.light** package for
any of its functions.
* Now this package only imports **R.methodsS3**, meaning it no longer
loads **R.methodsS3** when it is loaded.
# Version 0.4.5 [2012-03-19]
## New Features
* Updated the default argument `centers` of `rowMads()`/`colMads()`
to explicitly be `(col|row)Medians(x,...)`. The default behavior
has not changed.
# Version 0.4.4 [2012-03-05]
## Software Quality
* ROBUSTNESS: Added system/redundancy tests for
`rowMads()`/`colMads()`.
* CRAN: Made the system tests "lighter" by default, but full tests
can still be run, cf. `tests/*.R` scripts.
## Bug Fixes
* `colMads()` would return the incorrect estimates. This bug was
introduced in **matrixStats** v0.4.0 (2011-11-11).
# Version 0.4.3 [2011-12-11]
## Bug Fixes
* `rowMedians(..., na.rm = TRUE)` did not handle NaN (only NA). The
reason for this was the the native code used `ISNA()` to test for
NA and NaN, but it should have been `ISNAN()`, which is opposite to
how `is.na()` and `is.nan()` at the R level work. Added system
tests for this case.
# Version 0.4.2 [2011-11-29]
## New Features
* Added `rowAvgsPerColSet()` and `colAvgsPerRowSet()`.
# Version 0.4.1 [2011-11-25]
## Documentation
* Added help pages with an example to `rowIQRs()` and `colIQRs()`.
* Added example to `rowQuantiles()`.
## Bug Fixes
* `rowIQRs()` and `colIQRs()` would return the 25% and the 75%
quantiles, not the difference between them. Thanks Pierre Neuvial
at CNRS, Evry, France for the report.
# Version 0.4.0 [2011-11-11]
## Significant Changes
* Dropped the previously introduced expansion of `center` in
`rowMads()` and `colMads()`. It added unnecessary overhead if not
needed.
## New Features
* Added `rowRanks()` and `colRanks()`. Thanks Hector Corrada Bravo
(University of Maryland) and Harris Jaffee (John Hopkins).
# Version 0.3.0 [2011-10-13]
## Performance and Memory
* SPEEDUP/LESS MEMORY: `colMedians(x)` no longer uses
`rowMedians(t(x))`; instead there is now an optimized native-code
implementation. Also, `colMads()` utilizes the new `colMedians()`
directly. This improvement was kindly contributed by Harris Jaffee
at Biostatistics of John Hopkins, USA.
## Software Quality
* Added additional unit tests for `colMedians()` and `rowMedians()`.
# Version 0.2.2 [2010-10-06]
## New Features
* Now the result of `(col|row)Quantiles()` contains column names.
# Version 0.2.1 [2010-04-05]
## New Features
* Added a startup message when package is loaded.
## Code Refactoring
* CLEANUP: Removed obsolete internal `.First.lib()` and
`.Last.lib()`.
# Version 0.2.0 [2010-03-30]
## Documentation
* Fixed some incorrect cross references.
# Version 0.1.9 [2010-02-03]
## Bug Fixes
* `(col|row)WeightedMeans(..., na.rm = TRUE)` would incorrectly treat
missing values as zeros. Added corresponding redundancy tests
(also for the median case). Thanks Pierre Neuvial for reporting
this.
# Version 0.1.8 [2009-11-13]
## Bug Fixes
* `colRanges(x)` would return a matrix of wrong dimension if `x` did
not have any missing values. This would affect all functions
relying on `colRanges()`, e.g. `colMins()` and `colMaxs()`. Added
a redundancy test for this case. Thanks Pierre Neuvial at UC
Berkeley for reporting this.
* `(col|row)Ranges()` return a matrix with dimension names.
# Version 0.1.7 [2009-06-20]
## Bug Fixes
* WORKAROUND: Cannot use `"%#x"` in `rowTabulates()` when creating
the column names of the result matrix. It gave an error OSX with R
v2.9.0 devel (2009-01-13 r47593b) current the OSX server at
R-forge.
# Version 0.1.6 [2009-06-17]
## Documentation
* Updated the help example for `rowWeightedMedians()` to run
conditionally on **aroma.light**, which is only a suggested
package - not a required one. This in order to prevent `R CMD
check` to fail on CRAN, which prevents it for building binaries (as
it currently happens on their OSX servers).
# Version 0.1.5 [2009-02-04]
## Bug Fixes
* For some errors in `rowOrderStats()`, the stack would not become
UNPROTECTED before calling error.
# Version 0.1.4 [2009-02-02]
## New Features
* Added methods `(col|row)Weighted(Mean|Median)s()` for weighted
averaging.
## Documentation
* Added help to more functions.
## Software Quality
* Package passes `R CMD check` flawlessly.
# Version 0.1.3 [2008-07-30]
## New Features
* Added `(col|row)Tabulates()` for integer and raw matrices.
## Bug Fixes
* `rowCollapse()` was broken and returned the wrong elements.
# Version 0.1.2 [2008-04-13]
## New Features
* Added `(col|row)Collapse()`.
* Added `varDiff()`, `sdDiff()`, and `madDiff()`.
* Added `indexByRow()`.
# Version 0.1.1 [2008-03-25]
## New Features
* Added `(col|row)OrderStats()`.
* Added `(col|row)Ranges()` and `(col|row)(Min|Max)s()`.
* Added `colMedians()`.
* Now `anyMissing()` support most data types as structures.
# Version 0.1.0 [2007-11-26]
## New Features
* Imported the `rowNnn()` methods from **Biobase**.
* Created.
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