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Does "sortrows" not work with a semicolon?

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Doron
Doron 2012-2-21
Could someone clarify this issue I am having?
I tried to sort the rows of a matrix by the first column (in descending order)...
sortrows(P, -1) % works fine
But, for some reason:
sortrows(P, -1); % does not work!
Is this a known issue?
D Howard

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采纳的回答

Walter Roberson
Walter Roberson 2012-2-21
Remember, sortrows(P,-1); would sort the rows and then would throw away the results because you did not write them to a variable.
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Doron
Doron 2012-2-21
Well spotted, Walter & Sean.
It does work, but it throws away the result, of course.
I guess I was "doing in Matlab and thinking in Excel"
D Howard

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更多回答（1 个）

Kevin Holst
Kevin Holst 2012-2-21
Works fine for me. I did this:
a = magic(5);
b = sortrows(a,-1);
When you say, does not work, do you mean it gives you an error, or it does not sort properly?

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