NEWS

Summary of important user-visible changes for statistics 1.5.0:
-------------------------------------------------------------------

 Important Notice: dependency change to Octave>=6.1.0
                   mean shadows core Octave's respective function
 
 New functions:
 ==============
 
 ** anova2 (fully Matlab compatible)
 
 ** chi2gof (bug #46764)
 
 ** friedman (fully Matlab compatible)
 
 ** fillmissing (patch #10102)
 
 ** mean (fully Matlab compatible, it shadows mean from core Octave)
 
 ** ranksum (fully Matlab compatible. bug #42079)
    
 ** standardizeMissing (patch #10102)
 
 ** tiedrank (complementary to ranksum)

 Improvements:
 =============
  
 ** binopdf.m: implement high accuracy Loader algorithm for m>=10 (bug #34362)
 
 ** cdf.m: extended to include all available distributions
 
 ** geomean.m: fully Matlab compatible. (patch #59410)
 
 ** harmmean.m: fully Matlab compatible.
 
 ** ismissing.m: corrects handling of n-D arrays, NaN indicators, and improves
    matlab compatibility for different data types. (patch #10102)
 
 ** laplace_cdf.m: allow for parameters mu and scale (bug #58688)
    laplace_inv.m
    laplace_pdf.m
    logistic_cdf.m
    logistic_inv.m
    logistic_pdf.m
 
 ** pdf.m: extended to include all available distributions
    
 ** pdist.m: updated the 'cosine' metric to be more efficient (bug #62495)
 
 ** rmmissing.m: corrects cellstr array handling and
    improves matlab compatibility for different data types. (patch #10102)
 
 ** ttest2.m: can hale NaN values as missing data (bug #58697)
 
 ** violin.m: fix parsing color vector affecting Octave>=6.1.0 (bug #62805)
 
 ** wblplot.m: fixed coding style and help texinfo. (patch #8579)
  
 Removed Functions:
 ==================
 
 ** wilcoxon_test (replaced by ranksum)
 
 ** kruskal_wallis_test (replaced by kruskalwallis)
 
 ** sign_test (replaced by updated signtest)
 
 Available Data Sets:
 ====================
 
 ** acetylene     Chemical reaction data with correlated predictors
 ** arrhythmia    Cardiac arrhythmia data from the UCI machine learning repository
 ** carbig        Measurements of cars, 1970–1982
 ** carsmall      Subset of carbig. Measurements of cars, 1970, 1976, 1982
 ** cereal        Breakfast cereal ingredients
 ** examgrades    Exam grades on a scale of 0–100
 ** fisheriris    Fisher's 1936 iris data
 ** hald          Heat of cement vs. mix of ingredients
 ** kmeansdata    Four-dimensional clustered data
 ** mileage       Mileage data for three car models from two factories
 ** morse         Recognition of Morse code distinctions by non-coders
 ** popcorn       Popcorn yield by popper type and brand
 ** stockreturns  Simulated stock returns
 ** weather       Daily high temperatures in the same month in two consecutive years

Summary of important user-visible changes for statistics 1.4.3:
-------------------------------------------------------------------

 New functions:
 ==============

 ** anova1            (patch #10127)
    kruskalwallis

 ** cluster            (patch #10009)

 ** clusterdata        (patch #10012)

 ** confusionchart     (patch #9985)

 ** confusionmat       (patch #9971)

 ** cophenet           (patch #10040)

 ** datasample         (patch #10050)

 ** evalclusters       (patch #10052)

 ** expfit             (patch #10092)
    explike

 ** gscatter           (patch #10043)

 ** ismissing          (patch #10102)

 ** inconsistent       (patch #10008)

 ** mhsample.m         (patch #10016)

 ** ncx2pdf            (patch #9711)

 ** optimalleaforder.m (patch #10034)

 ** pca                (patch #10104)

 ** rmmissing          (patch #10102)

 ** silhouette         (patch #9743)

 ** slicesample        (patch #10019)

 ** wblplot            (patch #8579)

 Improvements:
 =============

 ** anovan.m: use double instead of toascii (bug #60514)

 ** binocdf: new option "upper" (bug #43721)

 ** boxplot: better Matlab compatibility; several Matlab-compatible
    plot options added (OutlierTags, Sample_IDs, BoxWidth, Widths,
    BoxStyle, Positions, Labels, Colors) and an Octave-specific one
    (CapWidhts); demos added; texinfo improved (patch #9930)

 ** auto MPG (carbig) sample dataset added from
    https://archive.ics.uci.edu/ml/datasets/Auto+MPG (patch #10045)

 ** crosstab.m: make n-dimensional (patch #10014)

 ** dendrogram.m: many improvements (patch #10036)

 ** fitgmdist.m: fix typo in ComponentProportion (bug #59386)

 ** gevfit: change orientation of results for Matlab compatibility (bug #47369)

 ** hygepdf: avoid overflow for certain inputs (bug #35827)

 ** kmeans: efficiency and compatibility tweaks (patch #10042)

 ** pdist: option for squared Euclidean distance (patch #10051)

 ** stepwisefit.m: give another option to select predictors (patch #8584)

 ** tricdf, triinv: fixes (bug #60113)


Summary of important user-visible changes for statistics 1.4.2:
-------------------------------------------------------------------

 ** canoncorr: allow more variables than observations

 ** fitgmdist: return fitgmdist parameters (Bug #57917)

 ** gamfit: invert parameter per docs (Bug #57849)

 ** geoXXX: update docs 'number of failures (X-1)' => 'number of failures (X)' (Bug #57606)

 ** kolmogorov_smirnov_test.m: update function handle usage from octave6+ (Bug #57351)

 ** linkage.m: fix octave6+ parse error (Bug #57348)

 ** unifrnd: changed unifrnd(a,a) to return a 0 rather than NaN (Bug #56342)

 ** updates for usage of depreciated octave functions

Summary of important user-visible changes for statistics 1.4.1:
-------------------------------------------------------------------
 ** update install scripts for octave 5.0 depreciated functions

 ** bug fixes to the following functions:
      pdist2.m: use max in distEucSq (Bug #50377)
      normpdf: use eps tolerance in tests (Bug #51963)
      fitgmdist: fix an output bug in fitgmdist
      t_test: Set tolerance on t_test BISTS (Bug #54557)
      gpXXXXX: change order of inputs to match matlab (Bug #54009)
      bartlett_test: df = k-1 (Bug #45894)
      gppdf: apply scale factor (Bug #54009)
      gmdistribution: updates for bug #54278, ##54279
      wishrnd: Bug #55860

Summary of important user-visible changes for statistics 1.4.0:
-------------------------------------------------------------------

 ** The following functions are new:

      canoncorr
      fitgmdist
      gmdistribution
      sigma_pts

 ** The following functions have been moved from the statistics package but are
    conditionally installed:

      mad

 ** The following functions have been moved from octave to be conditionally
    installed:

    BASE
      cloglog
      logit
      prctile
      probit
      qqplot
      table  (renamed to crosstab)

    DISTRIBUTIONS
      betacdf
      betainv
      betapdf
      betarnd
      binocdf
      binoinv
      binopdf
      binornd
      cauchy_cdf
      cauchy_inv
      cauchy_pdf
      cauchy_rnd
      chi2cdf
      chi2inv
      chi2pdf
      chi2rnd
      expcdf
      expinv
      exppdf
      exprnd
      fcdf
      finv
      fpdf
      frnd
      gamcdf
      gaminv
      gampdf
      gamrnd
      geocdf
      geoinv
      geopdf
      geornd
      hygecdf
      hygeinv
      hygepdf
      hygernd
      kolmogorov_smirnov_cdf
      laplace_cdf
      laplace_inv
      laplace_pdf
      laplace_rnd
      logistic_cdf
      logistic_inv
      logistic_pdf
      logistic_rnd
      logncdf
      logninv
      lognpdf
      lognrnd
      nbincdf
      nbininv
      nbinpdf
      nbinrnd
      normcdf
      norminv
      normpdf
      normrnd
      poisscdf
      poissinv
      poisspdf
      poissrnd
      stdnormal_cdf
      stdnormal_inv
      stdnormal_pdf
      stdnormal_rnd
      tcdf
      tinv
      tpdf
      trnd
      unidcdf
      unidinv
      unidpdf
      unidrnd
      unifcdf
      unifinv
      unifpdf
      unifrnd
      wblcdf
      wblinv
      wblpdf
      wblrnd
      wienrnd

    MODELS
      logistic_regression

    TESTS
      anova
      bartlett_test
      chisquare_test_homogeneity
      chisquare_test_independence
      cor_test
      f_test_regression
      hotelling_test
      hotelling_test_2
      kolmogorov_smirnov_test
      kolmogorov_smirnov_test_2
      kruskal_wallis_test
      manova
      mcnemar_test
      prop_test_2
      run_test
      sign_test
      t_test
      t_test_2
      t_test_regression
      u_test
      var_test
      welch_test
      wilcoxon_test
      z_test
      z_test_2

 ** Functions marked with known test failures:
      grp2idx: bug #51928
      gevfir_lmom: bug #31070

 ** Other functions that have been changed for smaller bugfixes, increased
    Matlab compatibility, or performance:

      dcov: returned dcov instead of dcor. added demo.
      violin: can be used with subplots. violin quality improved.
      princomp: Fix expected values of tsquare in unit tests
      fitgmdist: test number inputs to function
      hist3: fix removal of rows with NaN values

 ** added the packages test data to install


Summary of important user-visible changes for statistics 1.3.0:
-------------------------------------------------------------------

 ** The following functions are new:

      bbscdf bbsinv bbspdf bbsrnd
      binotest
      burrcdf burrinv burrpdf burrrnd
      gpcdf gpinv gppdf gprnd
      grp2idx
      mahal
      mvtpdf
      nakacdf nakainv nakapdf nakarnd
      pdf
      tricdf triinv tripdf trirnd
      violin

 ** Other functions that have been changed for smaller bugfixes, increased
    Matlab compatibility, or performance:

      betastat
      binostat
      cdf
      combnk
      gevfit
      hist3
      kmeans
      linkage
      randsample
      squareform
      ttest


Summary of important user-visible changes for statistics 1.2.4:
-------------------------------------------------------------------

 ** Made princomp work with nargout < 2.

 ** Renamed dendogram to dendrogram.

 ** Added isempty check to kmeans.

 ** Transposed output of hist3.

 ** Converted calculation in hmmviterbi to log space.

 ** Bug fixes for
    stepwisefit   wishrnd.

 ** Rewrite of cmdscale for improved compatibility.

 ** Fix in squareform for improved compatibility.

 ** New cvpartition class, with methods:

    display repartition test training

 ** New sample data file fisheriris.txt for tests

 ** The following functions are new:

    cdf crossval dcov pdist2 qrandn randsample signtest ttest ttest2
    vartest vartest2 ztest


Summary of important user-visible changes for statistics 1.2.3:
-------------------------------------------------------------------

 ** Made sure that output of nanstd is real.

 ** Fixed second output of nanmax and nanmin.

 ** Corrected handle for outliers in boxplot.

 ** Bug fix and enhanced functionality for mvnrnd.

 ** The following functions are new:

    wishrnd iwishrnd wishpdf iwishpdf cmdscale

Summary of important user-visible changes for statistics 1.2.2:
-------------------------------------------------------------------

 ** Fixed documentation of dendogram and hist3 to work with TexInfo 5.

Summary of important user-visible changes for statistics 1.2.1:
-------------------------------------------------------------------

 ** The following functions are new:

      pcares  pcacov  runstest  stepwisefit hist3

 ** dendogram now returns the leaf node numbers and order that the nodes were displayed in.

 ** New faster implementation of princomp.

Summary of important user-visible changes for statistics 1.2.0:
-------------------------------------------------------------------

 ** The following functions are new:

      regress_gp  dendogram   plsregress

 ** New functions for the generalized extreme value (GEV) distribution:

      gevcdf gevfit gevfit_lmom gevinv gevlike gevpdf gevrnd gevstat

 ** The interface of the following functions has been modified:

      mvnrnd

 ** `kmeans' has been fixed to deal with clusters that contain only
    one element.

 ** `normplot' has been fixed to avoid use of functions that have been
    removed from Octave core. Also, the plot produced should now display some
    aesthetic elements and appropriate legends.

 ** The help text of `mvtrnd' has been improved.

 ** Package is no longer autoloaded.

Summary of important user-visible changes for statistics 1.1.3:
-------------------------------------------------------------------

 ** The following functions are new in 1.1.3:

      copularnd mvtrnd

 ** The functions mnpdf and mnrnd are now also usable for greater numbers
    of categories for which the rows do not exactly sum to 1.

Summary of important user-visible changes for statistics 1.1.2:
-------------------------------------------------------------------

 ** The following functions are new in 1.1.2:

      mnpdf mnrnd

 ** The package is now dependent on the io package (version 1.0.18 or
    later) since the functions that it depended of from miscellaneous
    package have been moved to io.

 ** The function `kmeans' now accepts the 'emptyaction' property with
    the 'singleton' value. This allows for the kmeans algorithm to handle
    empty cluster better. It also throws an error if the user does not
    request an empty cluster handling, and there is an empty cluster.
    Plus, the returned items are now a closer match to Matlab.

Summary of important user-visible changes for statistics 1.1.1:
-------------------------------------------------------------------

 ** The following functions are new in 1.1.1:

      monotone_smooth kmeans jackknife

 ** Bug fixes on the functions:

      normalise_distribution  combnk
      repanova

 ** The following functions were removed since equivalents are now
    part of GNU octave core:

      zscore

 ** boxplot.m now returns a structure with handles to the plot elemenets.

Summary of important user-visible changes for statistics 1.1.0:
-------------------------------------------------------------------

 ** IMPORTANT note about `fstat' shadowing core library function:

    GNU octave's 3.2 release added a new function `fstat' to return
    information of a file. Statistics' `fstat' computes F mean and
    variance. Since MatLab's `fstat' is the equivalent to statistics'
    `fstat' (not to core's `fstat'), and to avoid problems with the
    statistics package, `fstat' has been deprecated in octave 3.4
    and will be removed in Octave 3.8. In the mean time, please
    ignore this warning when installing the package.

 ** The following functions are new in 1.1.0:

      normalise_distribution  repanova  combnk

 ** The following functions were removed since equivalents are now
    part of GNU octave core:

      prctile

 ** The __tbl_delim__ function is now private.

 ** The function `boxplot' now accepts named arguments.

 ** Bug fixes on the functions:

      harmmean  nanmax  nanmin  regress

 ** Small improvements on help text.