Finding the value according to row number

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King To Leung
King To Leung 2022-7-30
回答： Matt J 2022-7-30
I have an array which has 3 columns and a lot of rows(dr). In the first column, it has the row number (column 2)that of the data that I want to extract from another data set (data_crsp).
For example, dr(1:3,1), is [1 3 5], which means I want to draw the value of the second column and the first, third and fifth row of data. And put it in to the second column of the array.
Thanks guys!

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Matt J
Matt J 2022-7-30
data_crsp(dr(:,1),2)

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