Name

isdigit — check that characters of a string are digits between 0 and 9

Calling Sequence

res = isdigit(str)

Parameters

str

A character string.

res

A boolean matrix.

Description

res = isdigit(str) returns an array the same size as str containing logical %T (TRUE) where the elements of str are digits and logical %F (FALSE) where they are not.

Examples

 
s = 'A1,B2,C3';
isdigit(s)
 

See Also

isalphanum , isletter