is there any process to convert cell type array to numarical array?
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is there any process to convert a cell type array having 1 column to a matrix where the rows of cell type array will be the rows of the matrix and the component of the cell type array have different no of 1 row component in every column. 1 want that other column where the values does not have should consist of zero. please inform me. thank you in advance.
1 个评论
zohar
2011-7-6
Give example how the data look like and how do you want it to be .
回答（1 个）
Titus Edelhofer
2011-7-6
Hi,
if I understand correctly, the answer is no. But it would not be difficult to do:
Acell = {[1 2 3]; [1 2]; [1 2 3 4]};
columns = max(cellfun(@length, Acell));
A = zeros(length(Acell), columns);
for i=1:length(Acell)
A(i, 1:length(Acell{i})) = Acell{i};
end
Titus
4 个评论
Jan
2011-7-6
Because the OP does not want zeros, NaN could be an option.
Jan
2011-7-6
Because the OP does not want zeros, NaN could be an option.
CELLFUN('prodofsize') is much faster than CELLFUN(@length).
The main idea of your reply answers the question exhaustively. +1
Titus Edelhofer
2011-7-6
Hi Jan,
I understood "where the values does not have should consist of zero" that OP wants to have zeros where no values are given. Instead of zeros of course any other value can be used (e.g. nan).
Titus
Sean de Wolski
2011-7-6
'prodofsize' is a good one!
Even 7ishx faster than numel.
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2011-7-6
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