Re: Vectorization with max / min in matrix

[Bob Walton]

Pedro-2 wrote
> Hi,
> 
> I have two vectors/matrix, and I want to get his minimum values for
> every position without doing for/while/etc statement
> 
> But there is a problem:
> 
> a = randi([1 31],1,10);
> b = randi([1 31],1,10);
> a( a < b ) = b;
> error: A(I) = X: X must have the same size as I
> 
> I don't know why doesn't work, have the same size (perhaps it is not a
> bug because is the same error in Matlab).
> What is going wrong?
> 
> The original idea was to apply this to a matrix, but does not work
> with a vector...
> 
> a = randi([1 31],8,8);
> b = randi([1 31],8,8);
> a( a < b ) = b;
> 
> Greetings,
> Pedro
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Try:

a(a<b)=b(a<b);

The number of elements assigned on the left hand side and the number of
elements supplied on the right hand side need to be the same.
-- 
Bob Walton



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