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Re: Roundoff error in SMOOTH [message #15484 is a reply to message #15480]

Wed, 26 May 1999 00:00

landsman
Messages: 93
Registered: August 1991

Member

In article <26MAY199915495025@stars.gsfc.nasa.gov>, landsman@stars.gsfc.nasa.gov (Wayne Landsman) writes...
> I was recently surprised to discover that applying the SMOOTH function to a
> non-negative array could yield an array with negative numbers. I give an
> example below.

I forgot to include the IDL !VERSION used in my example:
{ sparc sunos unix 5.2 Oct 30 1998}

Testing the same example on VMS IDL V4.0.1, I still get negative numbers
although not as many!

--Wayne Landsman landsman@mpb.gsfc.nasa.gov

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		Re: Roundoff error in SMOOTH By: thompson on Wed, 26 May 1999 00:00
		Re: Roundoff error in SMOOTH By: landsman on Wed, 26 May 1999 00:00

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