How can I delete some specific rows from a cell?

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Thimiod Athan 2016-9-23

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关闭： MATLAB Answer Bot 2021-8-20

How can I delete som specific rows from a cell according to the matrix(see the pic). When the elementw of the Matrix are1 I must delete the same rows from the cell. Any ideas?

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Thimiod Athan 2016-9-24

编辑：Thimiod Athan 2016-9-24

Hello Adam. I want to delete the 2 raws (with the red color) from the following cell(6X3)

Thimiod Athan 2016-9-24

I think I find it Table(find(A==1),:)=[]. It was sooo easy...

Thanks for your help

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Answer 1

Image Analyst 2016-9-23

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编辑：Image Analyst 2016-9-23

What is "elementw" and "Matrix"? All we see are "Table" and "A".

If you have a cell array called ca, and you have a logical column vector "A", you can remove cells from ca where A is 1 or true like this:

caNew = ca(A==0); % Extract cells where A=0 (i.e. remove cells where A=1).

Or, equivalently

caNew = ca; % Initialize
caNew(A) = []; % Remove cells where A=1

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Thimiod Athan 2016-9-24

I think I find it Table(find(A==1),:)=[]. It was sooo easy...

Thanks for your help

Image Analyst 2016-9-24

Even easier is to use logical indexing. No need for find():

Table(A==1,:)=[];

table is a built in function in MATLAB. Even though MATLAB is case sensitive, so table is different than table, it's a good idea not to use variable names that are the "same" as function names.

I could have told you this . . . if you'd been a little more careful about your question. For example you never mentioned the "Table" variable at all in your question. And you used the word "cell" in a non-MATLAB-ish way. Go here http://matlab.wikia.com/wiki/FAQ#What_is_a_cell_array.3F for a very good discussion of cells in MATLAB.