Saving .mat file with different names

I am doing a test study in which I test the participants for three conditions. Each participant is given an ID (1,2,...etc.). The response of the participants is saved in form or .mat file. I would like to save the response such that NH_ID_Condition. For example, If I am testing for 1st participant and 2nd condition it should save as NH_1_2. How do I use any of the loops so that I dont have to rename the variable after the experiment is finished.

[Stephen23]

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

Answer 1

[Bjorn Gustavsson]

You can use the functional form of save:

X = data_of_interest1;
Y = data_of_interest2; % and 
save_name = sprintf('NH_%03d_%03d.mat',ID,Condition)
save(save_name,'X','Y')

That way you'll create one file with the X and Y data each ID-Condition combination. I strongly suggest that you use

%03d instead of %d when generating your save_name variable. The former will generate names with prepaded zeros like:

NH_001_012.mat - that way it becomes that much easier to list and handle the files in order. Depending on the number of participants and conditions you can change from %03 to whatever suits your needs.

HTH

Answer 2

[rahul PAL]

for k = 1 : 12

a = rand;

b = rand;

filename = sprintf('datset_%06d.mat',k)

save(filename,'a','b')

end