[R] How to index the occasions in a vector repeatedly under condition 1? if not, it will give a new index.
pd@|gd @end|ng |rom gm@||@com
Fri Feb 21 10:46:16 CET 2020
It has isTRUE, but that is not vectorized, and in fact explicitly tests length==1, so
> isTRUE(c(TRUE,TRUE, TRUE)) # I thought I thaw a puddycat... ;-)
 TRUE FALSE FALSE
(The latter would be silly as an implementation of is_true, of course.)
> On 20 Feb 2020, at 04:20 , Lijun Zhao <lijun.zhao using adelaide.edu.au> wrote:
> Some packages have the equivalent of that is_true function, which maps FALSE and NA to FALSE and TRUE to TRUE. I don't think core R contains such a function.
Peter Dalgaard, Professor,
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