MATLAB Programming Fundamentals - MathWorks

Compare Text

Compare text in character arrays and string arrays in different ways. String arrays were

introduced in R2016b. You can compare string arrays and character vectors with

relational operators and with the strcmp function. You can sort string arrays using the

sort function, just as you would sort arrays of any other type. MATLAB® also provides

functions to inspect characters in pieces of text. For example, you can determine which

characters in a character vector or string array are letters or space characters.

Compare String Arrays for Equality

You can compare string arrays for equality with the relational operators == and ~=. When

you compare string arrays, the output is a logical array that has 1 where the relation is

true, and 0 where it is not true.

Create two string scalars. Starting in R2017a, you can create strings using double quotes.

str1 = "Hello";

str2 = "World";

str1,str2

str1 =

"Hello"

str2 =

"World"

Compare str1 and str2 for equality.

str1 == str2

ans = logical

0

Compare a string array with multiple elements to a string scalar.

str1 = ["Mercury","Gemini","Apollo";...

"Skylab","Skylab B","International Space Station"];

str2 = "Apollo";

str1 == str2

ans = 2x3 logical array

Compare Text