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multitaper spectral analysis code? [message #28177]

Tue, 27 November 2001 08:16

Robert Stockwell
Messages: 74
Registered: October 2001

Member

Greetings all,
does anyone have multitaper spectral analysis code
in idl (for instance from the percival and walden book)?

I looked at that in the distance past, but didn't get into
it very far.

Cheers,
bob stockwell

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Re: multitaper spectral analysis code? [message #28234 is a reply to message #28177]

Wed, 28 November 2001 07:28

Klaus Scipal
Messages: 45
Registered: November 1997

Member

I've sent a copy to your email address

klaus

Robert Stockwell <rgs1967@hotmail.com> wrote in message
news:3C04F30A.5040002@hotmail.com...
> Hello Klaus,
> thanks for the response.
> I saw what appears to be your second message, but I do not
> see your first response on the newsgroup. Could you please
> repost?
>
> Cheers,
> bob stockwell
>
>
>
>
> Klaus Scipal wrote:
>
>> btw: the code attached in my posting doesn't save the derived mtm
spectrum
>> nor does it display the result. but it shouldn't be a problem to take
care
>> for that by you own (modify the routine mtm_spectral_analysis)
>>
>> regards klaus
>>
>>
>>
>> Klaus Scipal <kscipal@ipf.tuwien.ac.at> wrote in message
>> news:9u2co1$qls$1@news.tuwien.ac.at...
>>
>>> Hi Bob
>>>
>>> I have once implemented the MTmethod in IDL 5.2. In fact I translated a
C
>>> subroutine made available for public use by J.M Lees (you might want to
>>>
>> take
>>
>>> a look at http://www.unc.edu/~leesj/mtm/ for articles on MTM the C code
>>>
>> and
>>
>>> some documentation).
>>> I attached these routines so you can try working with them.
>>>
>>> They are not optimised for speed and efficiency and I am not one of
these
>>> programmer wizs so don't expect great code. But they are working and as
>>>
>> far
>>
>>> as I have tested them they derive the right results. Unfortunately I
>>>
>> didn't
>>
>>> spend to much time for documenting the code so I recommend that you read
>>> some material about MTM and check the code once you have adapted it for
>>>
>> your
>>
>>> purposes (test series are available on http://www.unc.edu/~leesj/mtm/).
>>>
>>> Klaus
>>>
>>>
>>>
>>>
>>>
>>> Robert Stockwell <rgs1967@hotmail.com> wrote in message
>>> news:3C03BC4F.7000406@hotmail.com...
>>>
>>>> Greetings all,
>>>> does anyone have multitaper spectral analysis code
>>>> in idl (for instance from the percival and walden book)?
>>>>
>>>> I looked at that in the distance past, but didn't get into
>>>> it very far.
>>>>
>>>> Cheers,
>>>> bob stockwell
>>>>
>>>>
>>>
>>>
>>
>>
>

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Re: multitaper spectral analysis code? [message #28237 is a reply to message #28177]

Wed, 28 November 2001 06:22

Robert Stockwell
Messages: 74
Registered: October 2001

Member

Hello Klaus,
thanks for the response.
I saw what appears to be your second message, but I do not
see your first response on the newsgroup. Could you please
repost?

Cheers,
bob stockwell

Klaus Scipal wrote:

> btw: the code attached in my posting doesn't save the derived mtm spectrum
> nor does it display the result. but it shouldn't be a problem to take care
> for that by you own (modify the routine mtm_spectral_analysis)
>
> regards klaus
>
>
>
> Klaus Scipal <kscipal@ipf.tuwien.ac.at> wrote in message
> news:9u2co1$qls$1@news.tuwien.ac.at...
>
>> Hi Bob
>>
>> I have once implemented the MTmethod in IDL 5.2. In fact I translated a C
>> subroutine made available for public use by J.M Lees (you might want to
>>
> take
>
>> a look at http://www.unc.edu/~leesj/mtm/ for articles on MTM the C code
>>
> and
>
>> some documentation).
>> I attached these routines so you can try working with them.
>>
>> They are not optimised for speed and efficiency and I am not one of these
>> programmer wizs so don't expect great code. But they are working and as
>>
> far
>
>> as I have tested them they derive the right results. Unfortunately I
>>
> didn't
>
>> spend to much time for documenting the code so I recommend that you read
>> some material about MTM and check the code once you have adapted it for
>>
> your
>
>> purposes (test series are available on http://www.unc.edu/~leesj/mtm/).
>>
>> Klaus
>>
>>
>>
>>
>>
>> Robert Stockwell <rgs1967@hotmail.com> wrote in message
>> news:3C03BC4F.7000406@hotmail.com...
>>
>>> Greetings all,
>>> does anyone have multitaper spectral analysis code
>>> in idl (for instance from the percival and walden book)?
>>>
>>> I looked at that in the distance past, but didn't get into
>>> it very far.
>>>
>>> Cheers,
>>> bob stockwell
>>>
>>>
>>
>>
>
>

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Re: multitaper spectral analysis code? [message #28241 is a reply to message #28177]

Wed, 28 November 2001 02:17

Klaus Scipal
Messages: 45
Registered: November 1997

Member

btw: the code attached in my posting doesn't save the derived mtm spectrum
nor does it display the result. but it shouldn't be a problem to take care
for that by you own (modify the routine mtm_spectral_analysis)

regards klaus

Klaus Scipal <kscipal@ipf.tuwien.ac.at> wrote in message
news:9u2co1$qls$1@news.tuwien.ac.at...
> Hi Bob
>
> I have once implemented the MTmethod in IDL 5.2. In fact I translated a C
> subroutine made available for public use by J.M Lees (you might want to
take
> a look at http://www.unc.edu/~leesj/mtm/ for articles on MTM the C code
and
> some documentation).
> I attached these routines so you can try working with them.
>
> They are not optimised for speed and efficiency and I am not one of these
> programmer wizs so don't expect great code. But they are working and as
far
> as I have tested them they derive the right results. Unfortunately I
didn't
> spend to much time for documenting the code so I recommend that you read
> some material about MTM and check the code once you have adapted it for
your
> purposes (test series are available on http://www.unc.edu/~leesj/mtm/).
>
> Klaus
>
>
>
>
>
> Robert Stockwell <rgs1967@hotmail.com> wrote in message
> news:3C03BC4F.7000406@hotmail.com...
>> Greetings all,
>> does anyone have multitaper spectral analysis code
>> in idl (for instance from the percival and walden book)?
>>
>> I looked at that in the distance past, but didn't get into
>> it very far.
>>
>> Cheers,
>> bob stockwell
>>
>
>
>

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Re: multitaper spectral analysis code? [message #28301 is a reply to message #28234]

Thu, 29 November 2001 05:46

Robert Stockwell
Messages: 74
Registered: October 2001

Member

Klaus Scipal wrote:

> I've sent a copy to your email address
>
> klaus

Thank you kindly Klaus. If I ever get around to it I
may (with your permission) put MT code along with several
other spectral analysis routines that I have up on my webpage.
Sort of a "spectral analysis toolkit" for IDL.

So, if anyone else has anything to contribute, drop
me a line.

Cheers,
bob

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