v1 = rand(10,1) ;
v2 = rand(50,1) ;
v3 = rand(30,1) ;
v4 = rand(20,1) ;
var = whos ;
for i = 1:length(var)
if var(i).size(1) < 20
clearvars(var(i).name)
fprintf('cleared %s \n',var(i).name)
end
end
Be carefull about array is column vector or row vector. In my example it is column vector.
