isletter
check that characters of a string are alphabetic letters
Syntax
res = isletter(str)
Arguments
- str
a character string.
- res
a boolean matrix.
Description
res = isletter(str) returns an array the same size as
str containing logical %t
(true) where the elements of str are letters of
the alphabet and logical %f (false) where they
are not.
Examples
s = 'A1,B2,C3'; isletter(s)
See also
- isalphanum — check that characters of a string are alphanumerics
- isdigit — check that characters of a string are digits between 0 and 9
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