How to select rows from an array?
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I have matrix of A 
. I need to select the 2nd, 4th and 6th row. How can I write that in MATLAB code?
. I need to select the 2nd, 4th and 6th row. How can I write that in MATLAB code?回答（3 个）
Torsten
2022-10-12
B = [A(2,:);A(4,:);A(6,:)]
or if you want the rows one by one:
A2 = A(2,:);
A4 = A(4,:);
A6 = A(6,:);
See this page of the doc to learn about array indexing.
Hint: A(__,:) where the blank is a vector of row indicies.
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2022-10-12
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