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Hello, I have a matrix of order 768 X 256. How can I downsample every alternate column. So that, every second column in the matrix is downsampled. So that new matrix will have order 768 X 128?. Kindly help me out.

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Sai Prakash Reddy Konda
评论： Sai Prakash Reddy Konda 2018-10-3
If A is of order 768 X 256. I need to downsample every alternate column, i.e. every 2nd column is downsampled. So that new matrix will have order 768 X 128. Kindly help me in this issue.
Thanks, Sai..

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Rik
Rik 2018-10-3
This works the same, but in reverse from your other question:
data=rand(768,256);%generate data for example
data(:,1:2:end)=[];

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Matt J
Matt J 2018-10-3
编辑：Matt J 2018-10-3
Another way to reduce the data would be by doing 1x2 binning, e.g., using sepblockfun (Download)
data= sepblockfun(data,[1,2],'mean');

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