I want to replace characters in a string using loops and if statements. For example if there is a Y in the string, I want to change it to a J. If there is an M in the string I want to change it to a Q.
John Williams answered .
2025-11-20
One example(use regexprep):
s="Yao Ming";
regexprep(s,{'Y','M'},{'J','Q'})