How to remove indexed set of rows from a cell array

Question

james sinos 2021-8-29

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https://ww2.mathworks.cn/matlabcentral/answers/1442609-how-to-remove-indexed-set-of-rows-from-a-cell-array

编辑： Wan Ji 2021-8-29

i have a cell array "corb " = 10×5 cell array

1- first question :

i want to find the indexes of all elements in the first column , 100000< element <300000

i tried this it doesn't work : row_indices = find(cell2mat(corb(:,1))>100000 & corb(:,1))<300000)

2- Second question :

once i have the vector containing row indexes values lets say its V=[ 3;5;10]

I would like to create a new cell array that has all of the rows from the original cell array EXCEPT for the rows specified by V. ( remove those rows).

so how to proceed

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Answer 1

the cyclist 2021-8-29

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https://ww2.mathworks.cn/matlabcentral/answers/1442609-how-to-remove-indexed-set-of-rows-from-a-cell-array#answer_776264

编辑：the cyclist 2021-8-29

在 MATLAB Online 中打开

% Identify rows
row_indices = find(cell2mat(corb(:,1))>100000  & cell2mat(corb(:,1))<300000);
% Define new array that is the same as corb, but and remove rows
corb2 = corb;
corb2(row_indices,:) = [];

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Answer 2

Wan Ji 2021-8-29

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https://ww2.mathworks.cn/matlabcentral/answers/1442609-how-to-remove-indexed-set-of-rows-from-a-cell-array#answer_776269

编辑：Wan Ji 2021-8-29

在 MATLAB Online 中打开

Try this

logical_indices = arrayfun(@(i)corb{i,1}(1)>100000&corb{i,1}(1)<300000,(1:1:size(corb))');
row_indices = find(logical_indices); % actually this line can be deleted to save time
corb2 = corb(~logical_indices,:); % this is what you want