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Change Log

All notable changes to this project will be documented in this file. This change log follows the conventions of keepachangelog.com.

[2.1.8]

Added

  • use-primitive-operators accepts optional set of symbols which shouldn't be imported

Fixed

  • abs redefinition in vector was not properly implemented (problem was visible when vector was precompiled with javac for Clojure2d)

[2.1.7]

Added

  • ball-random - unit ball random vector
  • sequence-generator :ball added - unit ball random sampling
  • some more fields
  • ceil and floor can snap to the nearest multiply of scale parameter (optional)

Fixed

  • Vec3 rotation
  • [breaking] ensure proper behaviour for Clojure interfaces for fastmath.vector custom types (see: https://github.com/nextjournal/clerk/issues/64)
  • next-double and prev-double to properly cross 0.0
  • Clojure 1.11.0 fixes (abs)

[2.1.6]

Added

  • jinc - besselj1(x)/x
  • muladd macro
  • evalpoly and mevalpoly - evaluate polynomial (from Julia)
  • makepoly create polynomial function
  • Si and Ci - https://dlmf.nist.gov/6.2#ii
  • much more types of skewness and kurtosis
  • much more effect size functions: r2-determination, eta-sq, omega-sq, epsilon-sq, cohens-f2, cohens-q, cramers-v, cohens-w, tschuprows-t
  • trim and winsor data based on quantiles
  • distances:
    • dist-ang - angular distance
    • sim-cos - cosine similarity
    • angular - refers to angular distance
  • ->seq in fastmath.random can accept sampling scheme (:uniform, :stratified and :systematic)
  • new vector functions: softmax, logsoftmax, logsumexp, logmeanexp, shift (adds a value to all elements), average (mean / weighted average)

Fixed

  • moment didn't work properly for certain cases
  • effect-size methods fixed
  • [breaking] fixes around cosine distance and similarity

Changed

  • fastmath.distance/cosine - refers to cosine similarity now
  • changes around data based distributions:
    • continuous-distribution is the same as kde
    • integer-discrete-distribution and real-discrete-distribution are sorted version of enumerated-int and enumerated-real

Removed

  • [breaking] fastmath.vector/dist-cos - wrong implementation

[2.1.5]

Fixed

  • grid: rhombus is now a real rhombus, triangle is equilateral now (cont. #8)

[2.1.4]

Fixed

  • cell->mid for :triangle grid returned wrong mid point for down triangles (#8)

Changed

  • [breaking] :triangle grid anchor is 3d now, last coordinate indicates triangle position (up/down)

[2.1.3]

Fixed

  • better histogram split

[2.1.2]

Added

  • bias corrected and accelerated percentile method for boostrap (PR7)

[2.1.1]

Added

  • bias corrected percentile method for boostrap (PR6)

[2.1.0]

Added

  • l-bfgs-b optimizer as :bfgs

Changed

  • SMILE version bump to 2.6.0
  • fastmath.gp relies now on SMILE backend (openblas/mkl)

[2.0.5]

Added

  • set-seed! accept :smile RNG which calls smile.math.MathEx/setSeed function. Also, without RNG function will set seed to both: Smile and default-rng.

[2.0.4]

Added

  • :kde distribution - create distribution based on kernel density estimation

[2.0.3]

Changed

  • SMILE version bumped to 2.5.0
  • netlib replaced by mkl (smile)

[2.0.2]

Added

  • moving-average-filter - moving average smoothing
  • kernel-smoothing-filter - signal smoothing filter using kernel methods

[2.0.1]

Added

  • savgol-filter - Savitzky-Golay smoothing filter

[2.0.0-alpha1]

Breaking change: due to significant change of SMILE API I decided to remove three ML namespaces: classification and regression. They probably be back as a separated bindings or incorporeted into SMILE directly.

Added

  • lloyd k-means variants
  • spectral clustering
  • gp namespace (GaussianProcesses) - moved from regression namespace

Removed

  • neural-gas clustering

Changed

  • [breaking] removed namespaces: classification and regression
  • :outliers? key is removed from regrouped data for clusters, now :outliers key is created when outliers are present

[1.5.3]

Added

  • round-even - even (or IEEE/IEC) rounding
  • cut - cut range into even intervals
  • slice-range - cut range into even steps
  • :dense rank ties method

Changed

  • R2 sequence is able to generate up to dimensions=15
  • [breaking] rank and order chagned to be zero based.
  • Licence changed to MIT

Fixed

  • co-intervals works the same as in R now
  • group-by-intervals checks all intervals instead the first one

[1.5.2]

Fixed

  • moment when center is nil should use mean

[1.5.1]

Added

  • moment function

Removed

  • second-moment (invalid implementation)

[1.5.0]

Changed

  • removed slf4j deps

[1.5.0-alpha4]

Changed

  • some defaults for scan optimization

[1.5.0-alpha3]

Added

  • B-Spline and polynomial interpolation
  • cb as cube of the number

[1.5.0-alpha2]

Added

  • mnorm - macro version of norm

Changed

  • protocol's wrapping functions shouldn't have primitive math hints (to avoid too many primitive->boxed conversions)

[1.5.0-alpha1]

Cleaned documentation with more usage examples.

Added

  • demean function
  • seq->vec2, seq->vec3 and seq->vec4
  • warp-noise
  • fastmath.signal - audio signal processing with effects + oscillators

Changed

  • [possibly breaking] all protocols put in separate namespace, wrapping functions introduced (with type hints where possible)
  • binary measure parameters

Fixed

  • acf calculation
  • MAD SMILE bindings replaced (SMILE mutates an array)

Removed

  • TOLERANCE constant in fastmath.vector

[1.4.0 SNAPSHOT]

Added

  • optimization package with various optimization methods
  • BayesianOptimization
  • NegativeBinomial distribution
  • bunch of SSJ based distributions
  • bootstrap datasets
  • t-test

Changed

  • [breaking] classification and regression refactored
  • [breaking] kernel-density moved to kernel namespace

Fixed

  • m/seq->double-array didn't recognize array type properly

[1.3.0 SNAPSHOT]

Added

  • make-vector returns vector for given number of dimensions and optional sequence.
  • vectors implements now IPersistentVector to work with vector?
  • core.matrix protocols for vectors
  • math functions can operate on vectors now (like [[sin]] etc.)
  • new functions for vectors clamp, zero-count, nonzero-count, as-vec
  • classification bindings for SMILE, ~~XGBoost~~ and LIBLINEAR
  • expm1 function
  • monotone interpolation
  • various extent stats funcions
  • haversine and haversine-dist (distance)
  • predicates nan?, inf?, valid-double?, invalid-double?, between?
  • calculate intervals for set of values co-intervals (same as R's function). Also group-by-intervals.
  • various kernel-density methods and kernel-density-ci for kernel density with confidence interval
  • various effect size functions
  • binary measures like fn, tp, etc... (around 30 statistics)
  • multivariate normal distribution added
  • gaussian processes reimplemented
  • kernels consolidated in one namespace

Changed

  • use fmap instead of applyf (now deprecated)
  • outliers are samples which are outside inner fence instead of outer fence
  • Vectors are associative now
  • [breaking] kernel-density is now multimethod
  • [breaking] histogram :bins contain starting point and sample counts only

Removed

  • rbf-obj converter
  • rbf and mercer namespaces (use fastmath.kernel instead)

[1.2.0]

Added

  • Various grid operations
  • hashCode for vectors

Changed

  • Breaking: sequence generator creatators return lazy sequence now (instead of function returning sequence)

[1.1.4]

Added

  • lcm - least common multiplier
  • Vec types implement Reversible Indexed ILookup
  • negative values for some constants (PI, E etc.)

Fixed

  • GAMMA constant name clash

Changed

  • stats-map returns list of outliers rather than number of outliers

Removed

  • :bessel vector field removed (hard to limit input range)

[1.1.3]

Added

  • sample can now return pairs of [x,(f x)].

[1.1.2]

Added

  • estimators for number of bins in histogram
  • kernel-density function

[1.1.1]

Changed

  • histogram data enhanced

[1.1.0]

Added

  • fastmath.clustering namespace

Changed

  • removed k-means from fastmath.stats

[1.0.3]

Fixed

  • norm when domain is a point, returns range start when value is less or equal domain, range end otherwise
  • small fix in one field

[1.0.2]

Added

  • curl for 2d vector fields

[1.0.1]

Added

  • :default (:jdk) rng is added

Fixed

  • MersenneTwister is not synchronized, default RNG is :jdk now

[1.0.0]

Added

  • easings namespace
  • sample function
  • extent stat ([min,max] pair)
  • histgram
  • vector field functions moved from clojure2d, api changed

Changed

  • interpolator have shorter names now (without -interpolator suffix)
  • rbf functions are moved to separate namespace
  • changed parameters order in interpolators (xs and ys are last)
  • next-float-up -> next-double
  • next-float-down -> prev-double

[0.1.1]

Added

  • BesselJ
  • all Gamma function variants (regularized, etc)
  • regularized Beta
  • log1p
  • estimation-strategy can be passed to any function calculating quantiles/percentiles
  • ->seq can accept number of samples now
  • low-exp, high-exp to find lower/greater exponent for given base and number

Changed

  • stats-map doesn't contain select keys option anymore

[0.1.0]

Initial version created from Clojure2d library.

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