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viktor Changelog
================
Here you can see the full list of changes between each viktor release.
Version 1.2.0
Released on November 4, 2021
- added "fold" and "reduce" methods
- added "combine" and "combineInPlace" methods
- deprecated "size" property in favor of the new "length" property
- changed the distribution method from Bintray to Maven Central
Version 1.1.0
Released on February 9, 2021
- added "transform" and "transformInPlace" methods
- improved performance of multiple operations
- F64FlatArray is specified as return type whenever possible
- types other than F64Array and F64FlatArray are now internal
- improved index and dimensionality checks
- improved test coverage
- removed the benchmarks that were bundled with the project
Version 1.0.2
-------------
Released on January 14, 2021
- Bumped Kotlin, Gradle, Bintray plugin and NPY versions
Version 1.0.1
-------------
Released on December 4, 2019
- Replaced log4j logging implementation with slf4j API, since libraries shouldn't enforce logging framework
Version 1.0.0
-------------
Released on November 19, 2019
- Simplified signatures
- Added a benchmark JAR task
- Simplified the native methods' signatures
- Removed transpose and reversed
- Introduced unroll mechanics for F64Array
- Serialization uses isFlattenable instead of isDense
- Changed native signature of logAddExp to dst-src syntax
- logAddExp now deals with positive infinities and NaNs
- Corrected guessShape implementation
- Correct JNI copy processing
- Added extensive Markdown documentation
- Reorganized benchmarks
- Removed weightedSum / Mean, transpose, reversed
- Added benchmarking data and description thereof to documentation
- Fixed Travis builds
Version 0.5.3
-------------
Released on January 21, 2019
- Use the latest Kotlin version
- No more illegal reflective access in Loader
Version 0.5.2
-------------
Released on January 15, 2019
- Previous version was MacOS-specific due to outdated instructions in README.
Version 0.5.1
-------------
Released on December 12, 2018
- Library dependencies containing '+' symbol replaced with exact versions. This gives more predictable runtime behaviour.
Version 0.5.0
-------------
Released on October 1, 2018
- Cross-platform build for 64 bit Linux, Windows and MacOS.
Version 0.4.2
-------------
- Fixed `Array<*>.toF64Array`.
Version 0.4.1
-------------
- Fixed `F64Array.V` serialization.
Version 0.4.0
-------------
Released on November 1st 2016
- Removed special cased `Vector`, `Matrix2` and `Matrix3` classes in
favor of a more generic `F64Array`.
- Fixed serialization of non-dense arrays.
- Allowed slicing an `F64Array` with a custom `step`.
- Added a special attribute `V` for n-d slicing the array.
- Removed `stochastic` and `indexedStochastic`.
- Added `axis` to `F64Array.append`, `F64Array.slice` and `F64Array.reorder`.
- Added `Array<*>.toF64Array` for converting nested arrays to strided ones.
Version 0.3.5
-------------
Bugfix release, released on September 21st 2016
- Fixed yet another bug, but this time in `StridedMatrix3.toString`.
Like they say, copy-paste is never a good thing.
Version 0.3.4
-------------
Released on September 21st 2016
- Fixed a bug in `StridedMatrix2.toString`, which incorrectly rendered
large matrices, and unified the implementation with `StridedMatrix3`.
- Added NumPy-compatible serialization support.
- Switched to the first stable release of Boost.SIMD v4.16.9.0.
Version 0.3.3
-------------
Bugfix release, released on September 2nd 2016
- Fixed a bug in `DenseVector.minusAssign` which called `plusAssign`
if the argument was not dense.
Version 0.3.2
-------------
Bugfix release, released on June 27th 2016
Version 0.3.1
-------------
Bugfix release, released on June 27th 2016
- Fixed loading native libraries from the JAR file.
- Fixed error handling on unsupported architectures.
Version 0.3.0
-------------
Released on June 27th 2016
- Dropped dependency on Yeppp! and embedded a re-worked simdstat.
- Removed `StridedVector.sumSq` in favour of `dot`.
- Switched to balanced summation in pure-Kotlin versions of
`StridedVector.sum` and `dot`.
- Added `StridedVector.sd` for computing unbiased standard deviation.
- Added SIMD speedups for / and /= operations.
- Added `StridedVector.log1p` and `expm1`.
- Fixed a bug in scalar division in expressions of the form 1.0 / v.
- Mirrored `StridedVector` operations in `StridedMatrix2` and
`StridedMatrix3`.
- Extended operator overloads for `Double` to `StridedMatrix2` and
`StidedMatrix3`.
Version 0.2.3
-------------
Released on May 26th 2016
- Added `StridedVector.append` and `StridedVector.concatenate` for
joining multiple vectors into a single vector.
- Changed `StridedVector.sort`, `argSort` and `reorder` to be extension
functions.
- Exposed `StridedVector.partition`.
- Added `StridedVector.searchSorted` for doing efficient sorted lookups.
- Changed `StridedVector.argMin` and `argMax` to be extension
functions.
Version 0.2.2
-------------
Released on April 29th 2016
- Added unary operator overloads for `StridedVector`.
- Implemented * and / operations for `StridedVector`.
- Added extra operator overloads for `Double`, so it is now possible to
write (1.0 + v / 2.0).
- Fixed `StridedVector.toString` in case of NaN and infinities.
- Changed `StridedVector.toString` to be more like NumPy for larger vectors.
Version 0.2.1
-------------
Bugfix release, released on April 22nd 2016
- Changed `StridedVector.quantile` to follow Commons Math implementation.
Version 0.2.0
-------------
Released on April 22nd 2016
- Changed all `StridedVector` members are now public.
- Changed `StridedVector.size` to be a property instead of a function.
- Removed `StridedVector.wrap`, please use `DoubleArray.asStrided` instead.
- Implemented `StridedVector.dot` for the case when the argument is
also a `StridedVector`.
- Added `StridedVector.quantile` for (amortized) linear-time order
statistic queries.
- Added `StridedVector.shuffle` for randomly permuting vector elements.
Version 0.1.4
-------------
Technical release, released on February 3rd 2016
- Migrated to Kotlin 1.0.0-rc.
Version 0.1.3
-------------
Technical release, released on February 1st 2016
- Renamed `StridedVector.sorted` to `argSort` to avoid confusion with
the `sorted` method on primitive arrays.
Version 0.1.2
-------------
Released on December 9th, 2015
- Overloaded - and / operations for `StridedVector`.
- Removed redundant boxing and copying in `StridedVector.sorted`.
- Fixed indexing in `StridedMatrix3.equals`.
- Added two new operations `StridedVector.mean` and `StridedVector.sumSq`,
which are also applicable to matrices.
Version 0.1.1
-------------
Technical release, released on October 22th, 2015
- Updated to Kotlin 1.0.0-beta.
- Renamed `_` to `_I` because the latter isn't a valid identifier as
of Kotlin M14. This is a temporary solution. I hope we'll find
a more human-readable workaround eventually.
Version 0.1.0
-------------
Initial release, released on October 15th, 2015