How do I sort files by part of their filename?

I have a set of files in a folder and the labelling is

Max_I=0.5

Max_I=1.0

Min_I=0.5

Min_I=1.0

etc.

I want to plot the data that is stored in the files but I want both of the files labeled with I=0.5 on one graph and both of the files labeled with I=1.0 on another graph (there are actually a lot more files than this), e.g. I want to sort them according to the value of I. Can this be done using regexp to sort the files or is there a better way?

Answer 1

[Yazan]

You can use the following to search for files in the current folder that have a specific name format:

P = dir('*I=0.5')
% P = dir('*I=1.0')