Extracting a specific element from each cell within cell array

Question

I have a cell array A of size 10x10 (say). Each cell in turn contains a 5x20 matrix. I want to select (i,j) element from each

Answer 1

CELL2MAT gets all the data from a cell array that consists of numeric data only, into a numeric array. So, that helped us here. For your original problem, try this -

celldim_i = 10;
celldim_j = 10;

block_size_i = 5;
block_size_j = 20;

search_i = i; %// Edit to your i
search_j = j; %// Edit to your j

A_mat = cell2mat(A);
out = A_mat(search_i+block_size_i*(0:celldim_i-1),search_j+block_size_j*(0:celldim_j-1))