so thats the problem -
i have vector d (size 5,000)
and i have matrix mat_X which show positions - every column show x positions over time for corresponding d in the vector (my original mat_X is 5000*5000 matrix)
so i want to built accumulated heat map of position along x (col from mat_X) for different d value (1position from the vector for the first col, 2 for 2nd and so on)
so for doing so, i need first to use histcounts for every col (since my data is not so small )
so i did this loop
[P,cc] = histcounts(mat_X(:,i),bins,'normalization','probability');
title('Accumulated Heat Map of RF x position, Vf at x=-1')
but... i get only black graph...
i would appreciate help !