MATLAB: Extract values from vector with cell indices

cellcell arrayindices

Hello guys,
i created a cell, with indices in the fields.
c=cell(2,2);
c{1,1}=[1,2,3];
c{2,1}=[7,8];
c{1,2}=[1,4];
c{2,2}=[3,5];
The goal is to extract and sum up values from another vector at this indices.
data=(1:10)';
The result should be a matrix (2×2, same size like c) with the results in it.
Pseudocode:
results(1,1)=sum(cell{1,1})=1+2+3
results(2,1)=sum(cell{2,1})=7+8
… and so on…
But this should be done automatically without a loop over the fields of the cell.

Best Answer

 cellfun(@sum,c)
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