How to assign variables to imported data columns

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Rahma Belaid
Rahma Belaid le 4 Sep 2017
Commenté : Stephen23 le 21 Fév 2022
I am working on a project where I have to load a .txt file that has 4000 raw and 2 columns. I would like to use the second column only in one of my calculations. How can I do that? I tried to assign variable x to be the first column and y to be the second, but I didn't know how.

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Wonsang You
Wonsang You le 4 Sep 2017
Let's assume that you have the text file, including numbers of 4000 rows and 2 columns, called "data.txt". Then, try the following commands.
M = dlmread("data.txt");
X = M(:,2);
Then, X is a column vector including just the second column. I wish it is helpful for you.
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Emily hand
Emily hand le 21 Fév 2022
What does the "M" do?
Stephen23
Stephen23 le 21 Fév 2022
"What does the "M" do?"
M is just the name given to the matrix of imported data.
https://www.mathworks.com/help/matlab/getting-started-with-matlab.html

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