isdigit

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

Calling Sequence

res = isdigit(str)

Arguments

: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 check that characters of a string are alphanumerics
• isletter check that characters of a string are alphabetics letters