Used internally. Helpers for simplifying code invoking vapply().
Usage
vapply_num(X, FUN, ...)
vapply_int(X, FUN, ...)
vapply_str(X, FUN, ...)
vapply_lgl(X, FUN, ...)
Arguments
- X
a vector (atomic or list) or an
expression
object. Other objects (including classed objects) will be coerced bybase::as.list
.- FUN
the function to be applied to each element of
X
: see ‘Details’. In the case of functions like+
,%*%
, the function name must be backquoted or quoted.- ...
optional arguments to
FUN
.