Move a columns to the right

Hello everyone, How can I move/shift a set of columns in an array to the right? For example I have

 B= [1 3 4 5 2 4; 2 8 6 7 9 8]

and I want to get this result:

 S= [1 3 2 4 5 4; 2 8 9 6 7 8].

How can I do this? thank you in advance.

Answer 1

[Star Strider]

The only way I can think of to do it is to use the circshift function on columns 3:5:

S = [B(:,1:2) circshift(B(:,3:5),[0 1]) B(:,6)];

[Nour BS]

Thank you Star Strider, it works !

[Star Strider]

My pleasure!

[Nour BS]

What about this case: I have B= [1 3 4 5 2 4; 2 8 6 7 9 8] and I want to get this: S=[3 4 5 2 4 1; 8 6 7 9 8 2] ?

Thanks ^^

[Star Strider]

That’s even easier:

S = circshift(B, [0 -1]);

My pleasure!

[Nour BS]

thanks a lot :))))))

[Star Strider]

As always, my pleasure!

If you want to rotate your matrices up-down one position instead of left-right one position, the circshift call would be:

S = circshift(B, [-1  0]);

With only two rows, the sign doesn’t have any noticeable effect. With larger matrices, it would.