How to plot part of the data from larger data file?

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Neha Gawande
Neha Gawande 2015-8-7
评论： Neha Gawande 2015-8-7
I have a text file containing 5 columns and 63 rows of data. I want to extract first 21 rows of first 2 columns and plot them in matlab. How can i do it?

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bio lim
bio lim 2015-8-7
A = rand(63, 5);
sub_A = A(1:21, [1 2]);
You can extract the 21 rows of the first two columns like this and proceed with your plot.

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Walter Roberson
Walter Roberson 2015-8-7
The easiest way is to load all of the data and then index it to extract the portion you want.

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