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Re: How to smooth lines in plots [message #32874 is a reply to message #32873]

Sat, 16 November 2002 07:28

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Kolbjorn Bekkelund (kobe@rocketrange.no) writes:

> I have a xy plot where the curve is very "rough" due to variations in the
> x-value. To ease the view of this plot I would like to smoothen it a bit.
> To describe the problem a bit more: Look at it as a line with some
> modulation in it, and I only want to see the shape of the curve and not all
> the small deviations.
>
> The plot is being made from a 2D array. Are there any ways of smooting like
> this?

I think this might be a job for the SMOOTH function.
If your data is really noisy, you might have to apply
the function multiple times.

I can't tell from your description exactly how the
plot is being made, but you may want to smooth each
row (or column) or your 2D array individually. For
example:

Plot, Smooth(array[3,*], 7, /Edge_Truncate)

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
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		Re: How to smooth lines in plots By: Kolbjorn Bekkelund on Sat, 16 November 2002 09:48
		Re: How to smooth lines in plots By: David Fanning on Sat, 16 November 2002 07:28

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