Checks if .then and .else are fine. If they have supported classes and if their length is the same.
check_thenelse_OX(.then, .else)
(list
, atomic
, NULL
)
A positive-replacement.
NOTE, that if .then
is not specified directly by named argument then the
first argument from ...
will be taken.
(list
, atomic
, NULL
)
A negative-replacement. Should be of length equal to length of .then
, or
single value or NULL
.
NOTE, that if .else
is not specified directly by named argument then the
last argument from ...
will be considered as a replacement.
NULL
invisible.