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From: Ulrik Nash on 27 Apr 2010 08:10
Hi Everyone,

Suppose I have two expressions

A = B + C

and

D = E + F

Now I simply wish to let G take the value A or D, depending on which of A or D is largest. If A > D, then G = A, and if A < D, then G = D.

How can I do this in a simple expression without using if then?

Cheers

Ulrik.
From: Bruno Luong on 27 Apr 2010 08:43
"Ulrik Nash" <uwn(a)sam.sdu.dk> wrote in message <hr6k6v$lr8$1(a)fred.mathworks.com>...
> Hi Everyone,
>
> Suppose I have two expressions
>
> A = B + C
>
> and
>
> D = E + F
>
> Now I simply wish to let G take the value A or D, depending on which of A or D is largest. If A > D, then G = A, and if A < D, then G = D.
>
> How can I do this in a simple expression without using if then?

The simplest is

max(A,D)

Bruno
From: Ulrik Nash on 27 Apr 2010 10:03
Thanks Bruno,

When I use the command on my expressions, I get an error message:

"Undefined function or method 'max' for input arguments of type 'struct'."

Why do i get this message?

Cheers
From: Matt Fig on 27 Apr 2010 10:51
"Ulrik Nash" <uwn(a)sam.sdu.dk> wrote in message <hr6qqo$eg$1(a)fred.mathworks.com>...
> Thanks Bruno,
>
> When I use the command on my expressions, I get an error message:
>
> "Undefined function or method 'max' for input arguments of type 'struct'."
>
> Why do i get this message?
>
> Cheers

Well, why *wouldn't* you get that message?

A.food = 'orange';
A.spice = 'nutmeg';

B.food = 'potato';
B.spice = 'clove';

Now, which structure is bigger? Think about it please.
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