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