Append values to several cells in cell array

Question

Imagine I have a cell array

A = {0, 1 ,2, 3, ...}

and indice vector

I = [0, 1, 0, 1, 0, ...]

and values

V = [2, 3]

and I want something like

A{I} = [A{I}; V]' = {0, [1 2], 2, [3 3], ....};

That is, I want to append several values to some cells of a cell array at once. How would I do that most elegantly/efficiently? :)

Shai · Accepted Answer · 2014-07-21 08:10:33Z

2

You can use cellfun

A(I==1) = cellfun( @(x,y) [x y], A(I==1), num2cell(V), 'UniformOutput', 0 );

Note the usage of regular subscripting (using (), rather than {}) to index the chosen cell elements using I==1. Also note that V is passed as a cell array (using num2cell) and not as a regular array.

edited Jul 21, 2014 at 8:10

answered Jul 21, 2014 at 8:04

Shai

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