MATLAB: How to add cells (m) to an already defined array (nx1) so that the new array is (n+m x 1)

Question

I have made a search type tool which searches for only .mdl files in the folders selected so I used

    a= dir(dname);
    a={a(:).name}';
    a(1:2)=[];
    file_find = '\w*.mdl';
    matchStr= regexp(a,file_find,'match');
    R=matchStr(~cellfun('isempty',matchStr));

So its like a is (7 x 1) cell array after that the code does a search for only .mdl and such that R is now (3 x 1). Now this whole code is nested in a loop. When it runs second time R is (1 x 1). I want a combined cell so that the final cell array would be like 3+1=4 ( 4 x 1)

Answer 1

As the code is nested in a loop, value of R is getting overwritten each time. Instead of it, you can append the new value of R as follow:

R = { matchStr(~cellfun('isempty',matchStr)) ; R};