Question

Matlab documentation states that it is possible to replace the Nth occurrence of the pattern in regexprep. I am failing to see how to implement it and google is not returning anything useful.

http://www.weizmann.ac.il/matlab/techdoc/ref/regexprep.html

Basically the string I have is :,:,1 and I want to replace the second occurrence of : with an arbitrary number. Based on the documentation:

regexprep(':,:,4',':','AnyNumber','N')

I do no understand how the N option should be used. I have tried ‘N’,2 or just ‘2’.

Note that the position of the : could be anywhere.

I realize there are other ways of doing this other than regexprep but I don’t like having a problem linger.

Thanks for the help!

Answer 1

regexprep(':,:,4',':','AnyNumber',2)

The above works.