problem using vertcat command in for loop

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sasan feyzi 2022-5-5

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https://ww2.mathworks.cn/matlabcentral/answers/1712330-problem-using-vertcat-command-in-for-loop

编辑： Jon 2022-5-5

Hi, Dear friends

I have a problem using vertcat in for loop command in matlab

I have 30 matixes with several sizes named : filter1 (n,1), filter2 (k,1), filter3 (i,1), ..... , filter30 (r,1)

,that i want to concatenate them in one column with vertcat command

Could any one help me?

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Stephen23 2022-5-5

编辑：Stephen23 2022-5-5

在 MATLAB Online 中打开

"I have 30 matixes with several sizes named : filter1, filter2, filter3, ..... , filter30"

And that is the start of your problems.

"that i want to concatenate them in one column with vertcat command"

That would be easy if you had stored your data in one cell array instead of thirty separate variables.

Then you could simply do this:

V = vertcat(C{:})

"Could any one help me?"

The best place to fix this is when you get them into the workspace: are the LOADed from files?

Jon 2022-5-5

编辑：Jon 2022-5-5

Probably is an issue with the dimension of you matrices not being compatible for vertical concatentation. They all need to have the same number of columns. Hard to tell the exact problem though without seeing the specifcs of what you are trying to do. Please attach a self contained example of your code you have that produces the problem and the full text of the error message(s) you are getting

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