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RE: Abs highest(extreme) value in a matrix with +ve & -ve elements
From: |
Mechanical Mon |
Subject: |
RE: Abs highest(extreme) value in a matrix with +ve & -ve elements |
Date: |
Tue, 24 Jan 2012 02:05:30 -0600 |
> -----Original Message-----
> From: Ben Abbott [mailto:address@hidden]
> Sent: Monday, January 23, 2012 8:55 AM
> To: adla.raghu
> Cc: address@hidden
> Subject: Re: Abs highest(extreme) value in a matrix
with +ve & -ve
> elements
>
> On Jan 23, 2012, at 8:31 AM, adla.raghu wrote:
>
> > Hi sorry for any confusion.
> >
> > By saying "extreme value" I meant if
we consider the range of the
> > values on a number scale
> >
> > Eg: A(:,1) = [1,3,-5,9,-7,10] are arranged as -7,-5,1,3,9,10 where
> > 10 is the extreme value
> >
> >
A(:,2) = [1,3,-5,9,7,-10] are arranged as -10, -5, 3, 7,9 where
> > -10 is the extreme value
> >
> > So if I say min(A) it returns -7,-10 but the extreme values are 10,
> -10
> > And if I say max(A) it returns 10, 9 but the
extreme values are again
> > 10,
> > -10
> >
> > I hope this makes sense
> >
> > thanks
>
> I'm not sure, but does this work ?
>
> [Amax,
nmax] = max (abs (A));
> Extremes =
[-Amax; Amax]
>
> Ben
>
I think this may be what you're looking for:
clear all;
A=randn(100,2)
B=max(A)+min(A);
for ii=1:length(B)
if (sign(B(:,ii))>=0)
out(:,ii)=max(A(:,ii));
else
out(:,ii)=min(A(:,ii));
endif
endfor
out
for i=1:length(out)
C(i,:)=[out(i); find(A==(out(:,i)))];
endfor
C
#end
There are probably more elegant ways of achieving this, but it works.
Mon
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, (continued)
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, adla.raghu, 2012/01/23
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, Ben Abbott, 2012/01/23
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, Jordi Gutiérrez Hermoso, 2012/01/23
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, adla.raghu, 2012/01/23
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, Jordi Gutiérrez Hermoso, 2012/01/23
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, adla.raghu, 2012/01/25
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, adla.raghu, 2012/01/23
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, Penfold, 2012/01/23
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, Penfold, 2012/01/23
- Re: Abs highest(extreme) value in a matrix with +ve & -ve elements, Ben Abbott, 2012/01/23
RE: Abs highest(extreme) value in a matrix with +ve & -ve elements,
Mechanical Mon <=