How do I replace a word in a string with ****?

Hello I have a text file where I am supposed to compare the strings in the text file with the words in another text file. After finding the word that I want to replace, how do I replace it? The first thing I did was use strfind to find the word. After that I have to replace the word with **?

 str = 'Long day';
 word = 'Long';
 t = strfind(str, word);

After doing this I get 1. Now how do I change 'Long day' to '**** day'? The word can be of any length, so you may need more ********.

Thank you

Answer 1

[per isakson]

Try

    str = strrep( str, 'Long', '****' );

and read strrep, Find and replace substring

[Kratos]

I tried this but the thing is the word that I have to replace can be of any length. It could also be 'something' or 'MATLAB' anything.

[per isakson]

"can be of any length" &nbsp strrep handles any length of the search and replacement string, respectively. That shouldn't be a problem.

    >> str = strrep( 'abcd', 'c', '123456789' )
    str =
    ab123456789d

"It could also be 'something' or 'MATLAB' anything" &nbsp I guess you need to use string variables instead of static strings.

    >> str = 'abcd'; 
    >> s1  = 'c';
    >> s2  = '123456789';
    >> str = strrep( str, s1, s2 )
    str =
    ab123456789d

Then there is regexprep, but I don't think you need to use that for your current problem

"I tried this" &nbsp It is neither possible for me to know what you tried nor why you think it was no good.