| Re: bug in IDL's hanning() window-generating function [message #25977 is a reply to message #25976] |
Thu, 02 August 2001 18:00   |
bennetsc
Messages: 18
Registered: January 1998
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Junior Member |
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In article <3B6974E4.CBCC8A96@noaa.gov>,
Paul van Delst <paul.vandelst@noaa.gov> wrote:
> bennetsc@NOSPAMucs.orst.edu wrote:
>>
>> In article <MPG.15d1a1e0a012bdcd989e44@news.frii.com>,
>> David Fanning <david@dfanning.com> wrote:
>>> Scott Bennett writes after a long analysis of the Hanning function:
>>>
>>>> In any case, I think the point Harris made is that a discrete
>>>> sampling of a window function should not taper to the same value at
>>>> the end that it has at the beginning because to do so would include
>>>> the first sample of the *next* period (windowed segment.) So IDL's
>>>> hanning() gets it wrong for both even- and odd-length windows. :-(
>>>
>>> Uh, huh. And how did RSI respond when you contacted them
>>> about it?
>>>
>> I didn't contact them. I'm disgusted with them after seeing how
>> they cheated my faculty advisor and, when I asked them to rectify
>> their errors, they refused to do so. I recommended to my advisor that
>> he turn the whole matter over to the university's legal counsel. He
>> told me that he was not going to renew the service contract any more,
>> so I doubt he will bother with having the legal counsel deal with it,
>> but either way it will be his decision and it's now out of my hands.
>> Given their denial of service while we had a service contract, I doubt
>> they would do any better now that we no longer have a service
> contract.
>
> Oi vey. another future matlab user.... ? :o)
>
Who knows? It will depend upon which package, if any, my next
employer wants me to use. I don't even know what my chances are
of ever being involved in time series data analysis work again after
I finish this degree program. (I suppose, if I can find a suitable
disk drive to replace the one that died on my ancient NeXT, I could
mess around with Mathematica 3.02 at home... :-)
Scott Bennett, Comm. ASMELG, CFIAG
College of Oceanic and Atmospheric
Sciences
Oregon State University
Corvallis, Oregon 97331
************************************************************ **********
* Internet: sbennett at oce.orst.edu *
*----------------------------------------------------------- ---------*
* "Lay then the axe to the root, and teach governments humanity. *
* It is their sanguinary punishments which corrupt mankind." *
* -- _The_Rights_of_Man_ by Tom Paine (1791.) *
************************************************************ **********
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