isTRUE | R Documentation |
The implementation of 'isTRUE' has been changed in R-3.5.0 from
identical(x, TRUE)
to is.logical(x) && length(x) == 1L && !is.na(x) && x
.
This backport overloads the old implementation for R versions prior to 3.5.0.
isTRUE(x)
# get function from namespace instead of possibly getting
# implementation shipped with recent R versions:
bp_isTRUE = getFromNamespace("isTRUE", "backports")
bp_isTRUE(FALSE)
bp_isTRUE(iris)
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