Infer folder from filename

getMat.m

-function m = getMat(folder,name,isWritable)
+function m = getMat(filename,isWritable)
 %GET_MAT Summary of this function goes here
 %   Detailed explanation goes here
 
+folder = fileparts(filename);
+
 if isWritable && ~exist(folder,'dir')
     mkdir(folder);
 end
 
-namemat = fullfile(folder,[name,'.mat']);
+namemat = [filename,'.mat'];
 m = matfile(namemat,'Writable',isWritable);
 end
\ No newline at end of file