Re: using tie-to

From: Daniel Dewey <dd_at_email.domain.hidden>
Date: Mon, 27 Jul 2009 11:30:49 -0400
Hi Pablo,

   Type

isis> help tie

-DAn


On Jul 27, 2009, at 11:26 AM, Herbert Pablo wrote:

> Hey all,
>
> I'm trying to fit the spectral continuum with two different xspec  
> models:
> phabs and pfcabs. Both of these models have as a constraint the  
> hydrogen
> density. What I would like to do is tie these two parameters  
> together since
> they should always be the same, but I don't know if that's possible.  
> I know
> set_par lets you freeze variables, so is there any way I can tie  
> these two
> variables together?
>
>
> Thanks,
> Bert Pablo

     ----------------------------------------------------------
     Daniel Dewey                           dd_at_email.domain.hidden     MIT Kavli Institute              Office:(617) 253-7244
     70 Vassar St., NE80-6085            Fax:(617) 253-8084
     Cambridge, MA 02139         http://space.mit.edu/home/dd
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Received on Mon Jul 27 2009 - 11:30:54 EDT

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