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Thread Subject: plot difference between 2 matrices of different size??

Subject: plot difference between 2 matrices of different size??

From: Nizar

Date: 8 Jan, 2008 14:06:03

Message: 1 of 2

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Hi

I want to compare the results I have obtained by plotting
the difference between them. The problem is that both
matrices are of different sizes, thus I cannot simply
subtract them from each other and plot them. What I have now
is that I plot them both in one figure, however I cannot see
the difference, because the difference is very small. Thus I
was wondering if there is a possibility to to subtract the
plots from each other to see the difference between them.

Thnx.

Subject: plot difference between 2 matrices of different size??

From: roberson@ibd.nrc-cnrc.gc.ca (Walter Roberson)

Date: 8 Jan, 2008 16:33:24

Message: 2 of 2

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In article <fm000b$1hv$1@fred.mathworks.com>,
Nizar <pakoeli@hotmail.com> wrote:

>I want to compare the results I have obtained by plotting
>the difference between them. The problem is that both
>matrices are of different sizes, thus I cannot simply
>subtract them from each other and plot them.

You could use interp1 to interpolate one of them to the size
of the other, and subtract that from the other.
--
"Is there any thing whereof it may be said, See, this is new? It hath
been already of old time, which was before us." -- Ecclesiastes

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