How to select rows from an array?

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ANANTA BIJOY BHADRA
ANANTA BIJOY BHADRA 2022-10-12
回答： ANANTA BIJOY BHADRA 2022-10-12
I have matrix of A . I need to select the 2nd, 4th and 6th row. How can I write that in MATLAB code?

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回答（3 个）

Torsten
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,:);
Adam Danz
Adam Danz 2022-10-12
编辑：Adam Danz 2022-10-12
See this page of the doc to learn about array indexing.
https://www.mathworks.com/help/matlab/math/array-indexing.html
Hint: A(__,:) where the blank is a vector of row indicies.
ANANTA BIJOY BHADRA
ANANTA BIJOY BHADRA 2022-10-12
I think I found out the way. It has to be something like this:
B=A([2, 4, 6], :)

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