Tests whether the given argument is a numeric value from the interval \([0,1]\)
is_degree(x, na_rm = FALSE)TRUE if x is a numeric vector, matrix or array with values
between 0 and 1, otherwise, FALSE is returned. If na_rm is TRUE,
NA values are treated as valid values. If na_rm is FALSE and x
contains NA values, FALSE is returned.
the value to be tested
whether to ignore NA values
Michal Burda