isInteger: Validate if a value is an integer
Description
Validate if the value passed to the function is an integer or
not. To be considered as an integer, the value must have a length
of 1. The type of value can be a integer
or numerical
.
However, a numerical
must have the same value
once casted to a integer
. A vector
of
integers will returned FALSE
.
Arguments
value
an object to validate.
Value
TRUE
is the parameter is a integer; otherwise FALSE