Delete rows from Cell Array
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Tyler Smith
le 7 Oct 2016
Réponse apportée : Hedayat
le 28 Nov 2019
I have a cell array as seen in the image. I want to delete the rows of the cell array where the first column is less than 3. Thanks.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/156966/image.png)
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Hedayat
le 28 Nov 2019
If you want to delete more than one rows of cell you can ...
a= cell(5,5)
a =
5×5 cell array
{0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
a([2,3],:)=[]
a =
3×5 cell array
{0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
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Asad (Mehrzad) Khoddam
le 7 Oct 2016
a is the cell array
b=find(cellfun(@(x) size(x,1)<3,a)==1);
while ~isempty(b)
a(b(1))=[];
b=b-1;
b(1)=[];
end
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Walter Roberson
le 7 Oct 2016
No, this checks for vectors less than 3 elements anywhere in the cell array.
The == 1 is redundant because the places that satisfy <3 will already return 1 and the other places will return 0 and find() automatically checks for non-zero. The code there is sort of like
find((x < 3) == true)
when you could just use
find(x < 3)
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