[Ifeffit] Making N (coordination number) a variable.

[Robert Gordon]

Or just swap...set N's to be the So^2 from a known coordination standard 
and define an amp for each shell...
e.g. So^2 = 0.8 from standard so all N's set to 0.8, and shell 1 had 
amp1 in the So^2 position defined as guess,
shell2 has amp2, etc....

On 2018-08-01 8:15 AM, Anatoly Frenkel wrote:
> Make it 1 in the N window and make amp*N expression in the S02 window 
> instead. Then use N as a coordination number (fix or vary it).
> Anatoly
>
> -------------------------------------------------------------------
> Anatoly I. Frenkel
> Professor
> Department of Materials Science and Chemical Engineering
> Stony Brook University
> Stony Brook, NY 11794, Ph: 631-632-2751
> Email: anatoly.frenkel at stonybrook.edu 
> <https://mail.bnl.gov/OWA/redir.aspx?C=F6wCGt4adziN6IvpdRQ-rWdgy3Oaoif_x-0ybKTBGBlALcrWeszTCA..&URL=mailto%3ajgchen%40columbia.edu>
> http://you.stonybrook.edu/frenkel
>
> Joint Appointment:
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> http://you.stonybrook.edu/scc2
> -------------------------------------------------------------------
>
> On Wed, Aug 1, 2018 at 11:07 AM, M Solo <sarsol89 at gmail.com 
> <mailto:sarsol89 at gmail.com>> wrote:
>
>     Hello
>     Is there a way in artemis to make N, coordination number, a
>     variable to be used in GDS window? I do realize that N and ss are
>     closely linked and do very similar things in the fit, but it seems
>     i may need fractional (average) coordination number for one of the
>     paths, and am fine fixing ss to see where N levels off.
>
>     Thank you very much.
>
>     Alex Solov
>
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