Changes in version 1.3.1 (2021-10-02) o updated Authors@R field. o updated URLs. o fixed errors flagged by R-devel in documentation. o updated URLs in documentation. Changes in version 1.3.0 (2021-04-25) o updated documentation for chi2.plugin() and and chi2.empirical() to compute chi-squared divergence. o new functions Gstat() and chi2stat() to compute the statistic and the Pearson chi-squared statistic with (asymptotic) p-values. o new functions Gstatindep() and chi2statindep() to compute the G statistic and Pearson chi-squared statistic to test independence. Changes in version 1.2.1 (2014-11-14) o change of maintainer email address. Changes in version 1.2.0 (2013-07-16) o new functions KL.plugin(), KL.empirical(), Kl.Dirichlet(), and KL.shrink() for computing the Kullback-Leibler divergence. o new functions chi2.plugin(), chi2.empirical(), chi2.Dirichlet(), and chi2.shrink() for computing the chi-squared statistic. o new functions chi2indep.plugin(), chi2indep.empirical(), chi2indep.Dirichlet(), and chi2indep.shrink() for computing the chi-squared statistic of independence. o new discretize2d() function for simple binning of a pair of random variables. o in all shrinkage functions the target option has been removed (and the default uniform target is now always used). Changes in version 1.1.9 (2013-06-22) o new discretize() function for simple binning of a continuous random variable. o now requires R >= 2.15.1. Changes in version 1.1.8 (2013-03-25) o License file removed. o Dependencies updated. o the functions freqs.shrink(), entropy.shrink(), mi.shrink(), entropy(), and freqs() now allow to specify the shrinkage intensity. Changes in version 1.1.7 (2012-01-20) o NAMESPACE file added Changes in version 1.1.6 (2011-03-21) o small in documentation file fixed (for R 2.13.0 release) o added in documentation that the default unit for the entropy is "nats" (natural units), for "bits" one needs to set unit="log2". Changes in version 1.1.5 (2010-04-11) o small bug in documentation file fixed (for R 2.11.0 release) Changes in version 1.1.4 (2009-08-08) o reference to publication (Hausser and Strimmer, 2009) added Changes in version 1.1.3 (2009-01-09) o small changes to update documentation Changes in version 1.1.2 (2008-11-22) o verbose messages for shrinkage entropy are now more informative and in the same style as those from corpcor o man pages slightly updated Changes in version 1.1.1 (2008-10-26) o bug fix: freqs.shrink() now also works for sample sizes 1 and 0 o freqs.shrink(), entropy.shrink() and mi.shrink() now return the estimated shrinkage intensity as attribute (lambda.freqs). Changes in version 1.1.0 (2008-09-29) o several new functions added for estimating mutual information: mi.plugin(), mi.empirical(), mi.Dirichlet() and mi.shrink(). Changes in version 1.0.0 (2008-09-02) This package implements the following entropy estimators o the James-Stein shrinkage estimator by Hausser and Strimmer, o the maximum likelihood estimator, o the Miller-Madow estimator, o various Bayesian estimators (based on Dirichlet-multinomial model), o and the Chen-Shao estimator. It also provides an R interface to the o Nemenman-Shafee-Bialek (NSB) estimator. o This is the first public release (2 September 2008).