[MATLAB] How do I manipulate strings in MATLAB (e.g., concatenation, length)?

In MATLAB, you can manipulate strings using various built-in functions and operators. Here are some common operations you can perform on strings:

  1. Concatenation: You can concatenate strings using the concatenation operator (+) or the strcat function. For example:
1str1 = 'Hello';
2str2 = 'World';
3result = [str1, ' ', str2];    % Concatenation using the concatenation operator
4result = strcat(str1, ' ', str2);  % Concatenation using the strcat function
5disp(result);  % Output: Hello World
  1. Length: You can find the length of a string using the length function or the numel function. For example:
1str = 'Hello World';
2len = length(str);
3disp(len);  % Output: 11
4
5len = numel(str);  % Equivalent to length(str)
6disp(len);  % Output: 11
  1. Substring Extraction: You can extract a portion of a string using the substr function or by indexing the string. For example:
1str = 'Hello World';
2substring1 = str(1:5);   % Extracts first 5 characters
3substring2 = substr(str, 7, 5);   % Extracts 5 characters starting from the 7th position
4disp(substring1);   % Output: Hello
5disp(substring2);   % Output: World
  1. String Manipulation Functions: MATLAB has many built-in functions to manipulate strings, such as lower, upper, strrep, strtok, strfind, and more. You can refer to the MATLAB documentation for a comprehensive list of these functions and their usage.

Remember, in MATLAB, strings are treated as arrays of characters, so you can use array indexing and looping techniques to manipulate them further.