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all(..., na.rm = FALSE)NA values are removed before
the result is computed.x denote the concatenation of all the logical vectors in
... (after coercion), after removing NAs if requested by
na.rm = TRUE.The value returned is TRUE if all of the values in x are
TRUE (including if there are no values), and FALSE if at
least one of the values in x is FALSE. Otherwise the
value is NA (which can only occur if na.rm = FALSE and
... contains no FALSE values and at least one
NA value).
Summary
group generic. Methods for it must use the signature
x, ..., na.rm.Summary group generic.
For this to work properly, the arguments ... should be
unnamed, and dispatch is on the first argument.Coercion of types other than integer (raw, double, complex, character, list) gives a warning as this is often unintentional.
This is a primitive function.
any, the ‘complement’ of all, and
stopifnot(*) which is an all(*)
‘insurance’.
range(x <- sort(round(stats::rnorm(10) - 1.2, 1)))
if(all(x < 0)) cat("all x values are negative\n")
all(logical(0)) # true, as all zero of the elements are true.
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