[AstroPy] ESA Summer of Code in Space 2013

Slavin, Jonathan jslavin@cfa.harvard....
Thu Jun 20 07:42:54 CDT 2013


Hi Adam,

I have used pyspeckit.  There are parts of it that are very useful, but I
found overall that it didn't do what I wanted.  For example, I wanted to
give it my spectrum, have it display it, allow me to manually (in the gui)
place my guesses for line centers (would probably need guesses for widths
as well) and then fit the lines (and continuum) and return the fitted line
centers, widths, and amplitudes, etc. along with error estimates.  It's
been a while now since I used it, but as I recall, pyspeckit did not do all
of those things.  There may have been other reasons as well, but in the end
I wrote my own fitting routines to work with the data.  Am I wrong about
the capabilities of pyspeckit?

Jon
________________________________________________________
Jonathan D. Slavin                 Harvard-Smithsonian CfA
jslavin@cfa.harvard.edu       60 Garden Street, MS 83
phone: (617) 496-7981       Cambridge, MA 02138-1516
fax: (617) 496-7577            USA
________________________________________________________



On Wed, Jun 19, 2013 at 5:21 PM, <astropy-request@scipy.org> wrote:
>
> Date: Wed, 19 Jun 2013 13:32:31 -0700 (PDT)
> From: Adam Ginsburg <keflavich@gmail.com>
> Subject: Re: [AstroPy] ESA Summer of Code in Space 2013
> To: astropy-dev@googlegroups.com
> Cc: astropy@scipy.org
> Message-ID: <44536fa7-b34e-4f05-941b-2cc05535bcc5@googlegroups.com>
> Content-Type: text/plain; charset="utf-8"
>
> Emil and Jon - there is a package that fits exactly those requirements,
> called pyspeckit:
> pyspeckit.bitbucket.org
>
> One of my major goals over the next year is to incorporate it into astropy
> bit by bit, i.e. make it work with astropy.models, astropy.units, and
> specutils.  Only a little progress in that direction has been made (in part
> because my coding efforts have been focused more on astroquery).
>
> Emil - there is a scipy-dependent voigt profile implemented in pyspeckit.
>  You can check that it agrees with yours:
>
> http://pyspeckit.bitbucket.org/html/sphinx/models.html#pyspeckit.spectrum.models.inherited_voigtfitter.voigt
>
> I'm bringing this up on this particular thread because I had considered
> submitting pyspeckit as a SOCIS project, but I think focusing on specutils
> instead will be better for the community.  Nonetheless, there are some
> specific project ideas in place that may help support the case for a
> student working on specutils via SOCIS:
> pyspeckit.bitbucket.org/html/sphinx/projects.html
>
>
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