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Extract data from cell array

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Bruno
Bruno 2014-1-30
评论： Moussa Bendjedia 2023-1-27
I have a Y array (46x1 cell). I want extract four cells (3,4,5 and 9). Each cell is composed 1x728. How I can extract the data from the cells. Thanks

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Azzi Abdelmalek
Azzi Abdelmalek 2014-1-30
编辑：Azzi Abdelmalek 2014-1-30
Look at this example
y={rand(1,3) rand(1,3) rand(1,3) rand(1,3) rand(1,3)}
y([2 3])
You can have
cell2mat(y([2 3]))
or
cell2mat(y([2 3])')
For your case:
y([3 4 5 9])
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Ted
Ted 2019-10-30
If each cell contains a 2D matrix and the size of matrices are different, is there an easy way to re-format the values in the cell array into a 1D mat-array?
I guess the hard way will be to reshape the matrix within each cell into a 1D array and then, do cell2mat to concatenate them together.
I am wondering whether there is an easier way to do?

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