How to create matrix using different columns but same length

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jaypal singh 2019-7-15

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https://ww2.mathworks.cn/matlabcentral/answers/471793-how-to-create-matrix-using-different-columns-but-same-length

评论： dpb 2019-7-15

Dear all,

i have 122 signal file with .mat format . I want to make matirx using all 122 variables but the coloumn length is variyeng from 73000 to 100000. How can i do this please advice.

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Adam 2019-7-15

What do you expect the final matrix to look like in the 27000 rows for which some columns have no data while others do? NaNs?

dpb 2019-7-15

Kalyan's cell array solution is certainly the simplest from standpoint of construction--that doesn't address what the point of creating the array in the first place is -- what do you intend to do with the data once you've got it? That could influence strongly what route to take for storage--operating on individual channels one-at-a-time the cell array is simple--to deal with more than one simultaneously for cross-correlations or other things, maybe an "ordinary" array w/ NaN could be more useful.

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