MATLAB: How to restrict sample for data analysis

Question

Hello everyone!

I have to following problem: I use a .mat file for my data analysis and only want to include observations of males. I have a dummy variable that codes observation of males by 0, but I cannot find a solution to restrict my sample to males only.

My data set contains approximately 20 variables for each observation (=person).

I hope this information is sufficient.

Thanks for your help!

Answer 1

mask = YourData(:, index_of_dummy_variable) == 0;
MaleData = YourData(mask, :);

The above assumes that the dummy variable is coded as a column of the data and that index_of_dummy_variable is the column number it is in.