matrix(x, n, m) now warns in more cases where length(x) differs from n * m, as suggested by Abby Spurdle and Wolfgang Huber in Feb 2021 on the R-devel mailing list.The default locations for the R installation and personal library folder have been changed.UTF-8 locales are used where available.Support for 32-bit builds has been dropped.Windows users should consult the WINDOWS section below for some profound changes including.Consequently, environment variable _R_CHECK_LENGTH_1_CONDITION_ no longer has any effect. Calling if() or while() with a condition of length greater than one gives an error rather than a warning.Calling & or || with either argument of length greater than one now gives a warning (which it is intended will become an error).This means that calling aggregate() with a formula as a named first argument requires name formula in earlier versions of R and name x now, so portable code should not name the argument (code in many packages did). The formula method of aggregate() now matches the generic in naming its first argument x (resolving PR#18299 by Thomas Soeiro).De changelog van deze uitgave ziet er als volgt uit: Significant User-Visible Changes: Het R-coreteam, dat zich vandaag de dag bezighoudt met de doorontwikkeling, heeft versie 4.2.0 uitgebracht met de titel Vigorous Calisthenics. In R is programmeren sterk objectgeoriënteerd en de functionaliteit kan uitgebreid worden via packages die onder andere via cran beschikbaar worden gesteld. Het werd oorspronkelijk ontworpen door Ross Ihaka en Robert Gentleman (vandaar de naam R) aan de Universiteit van Auckland, Nieuw-Zeeland. R is een ontwikkelomgeving en programmeertaal voor statistische en data-analysedoeleinden.
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