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Published July 23, 2020 | Version v1.4.2
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alan-turing-institute/distr6: distr6 1.4.2

Authors/Creators

  • 1. UCL

Description

distr6 1.4.2
  • Critical patch for patched Solaris: Updated precision in C++ log
distr6 1.4.1
  • Critical patches for R devel: workingSupport is now a public method and not an active binding
distr6 1.4.0 Minor Updates Added/Edited Functionality
  • Multivariate functions in VectorDistribution now return arrays
  • Analytical median now available for SDistributions where closed form expressions are known
  • Kernels now implemented in Rcpp with analytical log-pdf expressions. Analytical lower.tail and log.p will come in future versions.
  • Adding plotting for bivariate distributions using {plotly}
  • Added EmpiricalMV for empirical multivariate distributions
  • All documentation now uses roxygen R6
  • Distribution type is now required in construction custom Distributions as the previous method of 'guessing' was inefficient.
  • Added ParameterSetCollection for Wrappers. Same functionality as before but much more efficient.
  • Added $addDeps and $deps to ParameterSets to replace updateFunc. This allows faster and more precise control over parameter updates.
  • Added $addChecks and $checks to ParameterSets to replace custom checks in distributions, and $addTrafos and $trafos to replace custom parameter transformations before setting. These allows clearner control over parameter setting.
  • categories parameter in Categorical now called nCategories
  • Constructor of Categorical now requires elements to be provided as a list to elements
  • settable in ParameterSet now refers to the more intuitive flag that describes if a parameter can be set after construction
  • Added length active binding to ParameterSet to return number of parameters in the set.
  • Renamed squared2Norm in Kernels to pdfSquared2Norm and added x to arguments to allow for shifted norms.
  • Added mixturiseVector for mixing vector distributions
Deprecated Functions/Fields/Methods
  • Individual property and trait accessors deprecated: $support, $symmetry, $kurtosisType, $skewnessType, $valueSupport, $variateForm, $type
  • Separated Loglogistic and ShiftedLoglogistic so only the latter has a location parameter. Additionally added an analytical rand expression to ShiftedLoglogistic, and Loglogistic now implemented from package actuar
  • Removed deprecated classes: ArrayDistribution
  • Removed deprecated functions: listSpecialSets
  • WeighedDiscrete distribution now stores samples and probabilities as parameters.
  • Removed verbose argument from distribution constructor
  • Public update method in ParameterSet moved to private
  • Removed squared2Norm from the ExoticStatistics decorator
  • Deprecated updateFunc from ParameterSet
  • Removed .getRefParams from SDistributions and added deps
Patches
  • Bugfix in decorate function that was overwriting the decorators private field instead of appending
  • Vastly improved speed of construction of SDistribution and Kernel
  • Bugfix in $rand for Geometric distribution with trials == TRUE , previously was randomising between $[1, Inf)$ not $[0, Inf)$
  • Changed default form parameter in NegativeBinomial, now errors if supplied argument is not in one of the four choices (previously reverted to "fbs")
  • Fixed bug in MultivariateNormal rand() which was not adding the mean correctly
  • Massive bottleneck in VectorDistribution for same distribution type removed in d/p/q/r functions as well as non-generating function methods
  • Improved speed in VectorDistribution when only one row or column of data passed to d/p/q
  • Dirichlet, DiscreteUniform, Frechet Gumbel, Pareto, Rayleigh, Triangular, Wald now implemented from package extraDistr
  • Bug fix in Frechet $cdf
  • Analytical log and lower.tail now available for all SDistributions and imputation possible for customs with CoreStatistics
  • NegativeBinomial now uses Rcpp for d/p/q/r
  • Distributions from stats are now vectorised across parameters in C
  • Degenerate, ShiftedLoglogistic now Rcpp
  • Removed redundant K parameter from MultivariateNormal
  • Bugfix in Wald, symmetry was incorrectly flagged as "symmetric"
  • Fixed bug in TruncatedDistribution support - previously support interval type was "[]" instead of "(]". An important implication is that even if truncating at or outside of the distribution limits, the support will still be changed if the distribution was left-closed to become left-open.
  • Improved speed of assertions by using package {checkmate}
  • Bugfix in listDistributions which was overriding filtering with simplify

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Additional details

Related works

Is supplement to
https://github.com/alan-turing-institute/distr6/tree/v1.4.2 (URL)