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isalphanum

check that characters of a string are alphanumerics

Syntax

res = isalphanum(str)

Arguments

str

a character string.

res

a boolean matrix.

Description

res = isalphanum(str) returns an array the same size as str containing logical %t (true) where the elements of str are alphanumerics and logical %f (false) where they are not.

Examples

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

See also

  • isletter — check that characters of a string are alphabetic letters
  • isdigit — check that characters of a string are digits between 0 and 9
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Last updated:
Thu Oct 24 11:15:59 CEST 2024