function save_results_mat(results, file_path)
%SAVE_RESULTS_MAT Save results struct to a MAT file.

arguments
    results (1,1) struct
    file_path (1,:) char
end

folder_path = fileparts(file_path);
if ~isempty(folder_path) && ~exist(folder_path, 'dir')
    mkdir(folder_path);
end

save(file_path, 'results', '-mat');