The code I submitted is for the original Lomb-Scargle periodogram. The equations themselves were only refactored to allow the periodogram to be calculated using only a single pass through the input arrays for each frequency. It might be possible to also add code for the generalized periodogram, although that is slightly more complicated because it involves several integrals, I'll have a look. Regards, Pim Schellart On Dec 24, 2010, at 7:00 PM, scipy-dev-request@scipy.org wrote:

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1. Re: Ticket created for Lomb-Scargle periodogram (Johann Cohen-Tanugi)

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Message: 1 Date: Fri, 24 Dec 2010 09:59:00 +0100 From: Johann Cohen-Tanugi <cohen@lpta.in2p3.fr> Subject: Re: [SciPy-Dev] Ticket created for Lomb-Scargle periodogram To: SciPy Developers List <scipy-dev@scipy.org> Cc: Pim Schellart <P.Schellart@astro.ru.nl> Message-ID: <4D1460D4.5040909@lpta.in2p3.fr> Content-Type: text/plain; charset=ISO-8859-1; format=flowed

hi there, I did not look at the code, sorry, but is it the original LS periodogram, or the generalized one?

best, Johann

On 12/23/2010 05:23 PM, Pim Schellart wrote:

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Dear SciPy developers,

as requested I created an enhancement ticket (http://projects.scipy.org/scipy/ticket/1352). I attached FORTRAN 95, FORTRAN 77 and ANSI C versions of the subroutine, so you may pick your favorite language :) Just let me know what the next step (if any) should be. Merry Christmas!

Regards,

Pim Schellart _______________________________________________ SciPy-Dev mailing list SciPy-Dev@scipy.org http://mail.scipy.org/mailman/listinfo/scipy-dev

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