selecting a specific range in a matrix and cell array
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I have a large cell array with many matrices. I want to select row 1 and column 16 which has a matrix table. in that matrix table i want to select row 861. How do I do that?
a{1,16:861}
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Image Analyst
2014-12-23
% Extract the matrix inside that cell in row 1, column 16
% of the cell array into a regular numerical array.
cellContents = ca{1,16}; % This is a regular normal matrix now
% Now extract row 816 from that matrix:
row861 = cellContents(861, :); % Get all columns of row 861 into row vector.
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Sean de Wolski
2014-12-23
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Just use two lines of code. There's no shame in doing this. And since MATLAB passes implicitly by reference anyway, it won't require a memory copy unless you change something.
2 个评论
AA
2014-12-23
Sean de Wolski
2014-12-23
Start here:
You can index into the cell array to extract its contents with {} or to extract the cell as ().
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