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falsch
2025 Apr 10
1
table() and as.character() performance for logical values
...possible?results?of?the?C?function?'StringFromLogical'?allows?as.character(L)?to?be?as?fast?as?c("FALSE",?"TRUE")[L+1L]?in?R. For example, 'StringFromLogical' could be changed to
attribute_hidden?SEXP?StringFromLogical(int?x,?int?*warn)
{
static SEXP TrueCh, FalseCh;
????if?(x?==?NA_LOGICAL)?return?NA_STRING;
????else?if (x) return TrueCh ? TrueCh : (TrueCh = mkChar("TRUE"));
else return FalseCh ? FalseCh : (FalseCh = mkChar("FALSE"));
}
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On?21?Mar?2025,?at?8:26,?Karolis?Koncevi?ius?wrote:
>?[You?don't?often?get...