Removing empty cells from cell array
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G is a cell array:
G={16x16 cell 16x16 cell 16x16 cell 16x16 cell 16x16 cell 16x16 cell}
Each cell look like this: G{1}=[1 [] 3 ; 4 [] 7]; (but 16x16)
I want to remove these empty cells []. I have tried
index = cellfun(@isempty, G) == 0;
Gnew = G(index)
Without success. How can I solve this?
2 Comments
"Each cell look like this: G{1}=[1 [] 3 ; 4 [] 7]; "
I doubt that, as numeric arrays must be rectangular and cannot contain "holes":
[1,[],3;4,[],7]
Please upload some sample data in a mat file by clicking on the paperclip button.
Joel Schelander
on 26 Mar 2021
Accepted Answer
Most likely converting the nested cell array to numeric arrays is going to make processing your data easier:
S = load('G.mat');
GUD = S.GUD
GUD{1}
Convert:
for k = 1:numel(GUD)
idx = ~cellfun(@isempty,GUD{k});
tmp = zeros(size(GUD{k})); % or perhaps NAN.
tmp(idx) = [GUD{k}{idx}];
GUD{k} = tmp;
end
Checking:
GUD
GUD{1}
If you really want to keep the (very inefficient and difficult to work with) nested cell arrays containing scalar numerics, then something like this:
for k = 1:numel(GUD)
idx = ~cellfun(@isempty,GUD{k});
GUD{k}(idx) = {0};
end
1 Comment
Joel Schelander
on 26 Mar 2021
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