`strcmpi`

Compares text for equality, ignoring letter case.

Category: Language Fundamentals > Data Types

Syntax

tf = strcmpi(s1, s2)

Returns true if the texts are equal apart from case.

Description

strcmpi behaves like strcmp but treats upper and lower case versions of a letter as equal. Length and all other characters, including spaces, must still match exactly.

It is handy for checking option names typed by a user, for example strcmpi(opt, 'yes').

Input arguments

s1, s2: Character vectors, strings, cell arrays or string arrays, with the same rules for scalar expansion as strcmp.

Output arguments

tf: Logical scalar or array.

Example

Case-insensitive match

strcmpi('Hello', 'hELLO')
strcmpi({'Yes','no'}, 'yes')

Output

ans = logical
   1
ans = 1×2 logical array

   1   0

strcmpi