Commenting in matlab [duplicate]

Question

This sounds like a simple question. I have the following snippet:

target=strcat(string, ...
              string2, ...
              'suffix' );   

A simple string concatenation written in multi-line. There are times I have to comment out intermediate text i.e. string2 with %. However doing this gives an error message: parse error at ')': usage might be invalid matlab syntax. Can someone help me on commenting out the middle line with alternative forms?

Answer 1

The line continuation command ... makes everything after it a comment, and (of course) makes MATLAB continue with the next line. So to comment out string2 in your function call, use ... instead of % to comment out.

With string2:

target=strcat(string, ...
              string2, ...
              'suffix' );

Without string2:

target=strcat(string, ...
              ... string2, ...
              'suffix' );

Answer 2

To comment out part of a statement that spans multiple lines, use an ellipsis (...) instead of a percent sign. For example,

target=strcat(string, ...
         ... string2, ...
          'suffix' );