MATLAB: How to convert 2 column matrix to a cell array

Question

Is there a convenient way to convert a 2 column matrix into a cell array (without using nested for loops if possible)?

The matrix looks like:

Can I make a matrix from the above matrix such that the rows and columns of the new matrix(or a cell array you can say) will be like you see below:

the empty cells can be NAN and the filled cells are the values of the 3rd column of the old matrix.

Answer 1

result = accumarray(matrix(:,[2 1]), matrix(:,3), [], @(v) {v}, {nan})

However I wonder if you would be better off using

result = sparse(matrix(:,2), matrix(:,1), matrix(:,3))

which would be a sparse numeric array instead of a cell array that takes up about 108 bytes per entry.