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A general description is here.
‘table()’ has been amended to be more internally consistent and become back compatible to R <= 2.7.2 again. Consequently, ‘table(1:2, exclude=NULL)’ no longer contains a zero count for ‘<NA>’, but ‘useNA = "always"’ continues to do so.
‘dump.frames()’ gets a new option ‘include.GlobalEnv’ which allows to also dump the global environment, thanks to Andreas Kersting's proposal in PR#17116.
‘table()’ no longer drops an ‘"NaN"’ factor level, and better obeys ‘exclude = <chr>’, thanks to Suharto Anggono's patch for PR#16936. Also, in the case of ‘exclude = NULL’ and ‘NA’s, these are tabulated correctly (again).
Further, ‘table(1:2, exclude = 1, useNA = "ifany")’ no longer erronously reports ‘<NA>’ counts.
Additionally, all cases of empty ‘exclude’ are equivalent, and ‘useNA’ is not overwritten when specified (as it was by ‘exclude = NULL’).