can we run codes from 2nd line onwards?

I am running my codes externally i.e. calling one *.m file from another using "run(filename)" command.

Can I call this run(filename) from 2nd line onwards or can i skip few lines?

As first line contains clear command, it clears all the previous variables.

[Stephen23]

"As first line contains clear command, it clears all the previous variables."

A much better solution would be to write functions instead of scripts.

And avoid programmatic use of clear, which is massively overused by beginners and yet rarely required.

Answer 1

[Walter Roberson]

Not exactly. You cannot tell MATLAB to skip the first line of a file during run(). However, you can read the content of the file, remove the first line, and execute that content.

temporary_string = fileread(filename);
temporary_string = regexprep(temporary_string, '^[^\n]*\n', '');  %delete first line
eval(temporary_string)

Strictly speaking, this is not equivalent to run(), in that run cd's to the directory the file is in but this code does not do that. That makes a difference in search paths -- for example if there was a private/ directory in the folder the file is stored in, then run() would use the functions in the private/ folder, but the above code will not.

[KALYAN ACHARJYA]

@Walter Roberson Sir i misunderstood the question, thanks for clarification!

[Rik]

Just a note: as the default encoding for .m files is now UTF-8, using fileread might result in incorrect values of strings/chars.