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Extracts columns using functions

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Hi,
I have raw .mat file. The data inside the file is not in the form of the matrix.
However based on few conditions i need to extract one coulmn of data.
How do i do that using a function ?
Kindly help.
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Ameer Hamza
Ameer Hamza 27 Mar 2020
What do you mean by raw .mat file? Are you trying to open .mat file in some other software?

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Anurag Agrawal
Anurag Agrawal 30 Mar 2020
Your question sounds incomplete. However from my understanding, you can use matfile function to access and change variables in MAT-file without loading file into memory.
For example, if you have matrix a saved in abcd.mat, you can access it using:
myObj = matfile('abcd.mat');
Then you can access 3rd column like
x = myObj.a(:,3);

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