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Hello. I´m new to Matlab and I can´t solve the next syntax problem. That is: I have 4 files (.dat). Each one contents a variable number of rows but all of them have 6 columns. What I want is removing 21st rows of each document (which are NAN, by the way) and join them into one file. Can you help me?
Thanks in advance

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Gayatri Menon
Gayatri Menon 2018-4-12

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Hi,
Hope the below example helps.
Let the matrix A=[1 2 3;4 5 6;NaN,NaN,NaN].If you want to remove the 3rd row of this matrix, you could use the following command
A(3,:)=[];
In order to concatenate the matrices vertically, 'vertcat' command can be used.
Please refer the below documentation on vertcat:
https://www.mathworks.com/help/matlab/ref/vertcat.html
Thanks

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Thanks a lot Gayatri.Vertcat command successfully solves the concatenate's problem. Im relation to removing rows. Could I write A(1:21,:)=[]; in order to delete a range of rows(from 1 to 21)?

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