cell arrays to table or normal array in matlab

Question

Jwana 2012-10-24

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Hi all,

I have cell array show as this:

C =

    {1x1 cell}            []            []
    {1x1 cell}    {1x1 cell}            []
    {1x1 cell}    {1x1 cell}    {1x1 cell}
    {1x1 cell}    {1x1 cell}    {1x1 cell}
    {1x1 cell}    {1x1 cell}            []
    {1x1 cell}    {1x1 cell}            []
    {1x1 cell}    {1x1 cell}            []
    {1x1 cell}    {1x1 cell}    {1x1 cell}
    {1x1 cell}    {1x1 cell}            []
    {1x1 cell}    {1x1 cell}            []
    {1x1 cell}    {1x1 cell}    {1x1 cell}
    {1x1 cell}    {1x1 cell}    {1x1 cell}

How can I see the contens of a cell array? mena that how can I deal with it like how I deal with normal array? also I want the empty matrix to be shown as zero value in or der to make some processing on it

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Answer 1

Walter Roberson 2012-10-24

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For your last part:

C(cellfun(@isempty, C)) = 0;

For your first two parts: as you have cells that contain cell arrays, we cannot determine whether it is possible to reasonably present the contents in a linear form. C{1,1} might be a cell array containing a binary tree, for example.

If the process through which you created C had you expecting something array-like, it could be that you did not create the entries in the best way.

For example,

C{J,K} = [3 5 7];

would be more commonly used than

C{J,K} = {3 5 7};

There are uses for both setups, but the first of these two would probably display more like you expected.

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Jwana 2012-10-25

thank you for ur response... for the command : C(cellfun(@isempty, C)) = 0, I have the followng error msg:Conversion to cell from double is not possible !!

I could create 3 vectors from this cells array (which is my target).. but the main problem is that when there is empty cells, it ignore it in a vector term although I need it to be a zero value!! any advice

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Answer 2

Andrei Bobrov 2012-10-24

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Your data:

C = arrayfun(@(x){randi(20,randi(5),randi(3))},zeros(10,3),'un',0);
C(randperm(numel(C),5)) = {[]};
% solution
ii = ~cellfun(@isempty,C);
out = cell(size(C));
out(ii) = cellfun(@(x)x{:},C(ii),'un',0);