Dear Riccardo (and everyone else),
Thanks for finding this "feature". The convergence criterion in GSAS that
most are familiar with is the limit on sum(shift/esd)**2 of 0.01. The "V"
option allows one to change this criterion. The value entered is an integer
power for this criterion. Thus the default is -2 so that the limit is
10**-2. It is probably only worth changing when one is dealing with a very
large refinement problem with 100's of variables. Given the state of the
code for this, I'm not sure this option has been fully implemented; I'll
check it out and fix it if needed.
Bob Von Dreele
At 09:53 PM 6/4/00 +0200, you wrote:
>Dear all,
>in GSAS, L-S control editing option menu appears as follows
>Enter L-S control editing option (<?>,A,B,C,D,E,J,L,P,X) >
>
>By entering "V" (which is not in the list) a new convergence criterion is
>asked:
>Enter the new convergence criterion >
>
>Can I have more information on this, and also the more appropriate answer to
>that question?
>Thank you in advance
>
>Riccardo Vivani
>Laboratiorio di Chimica Inorganica
>Dipartimento di Chimica
>Perugia - Italy
