Suggestion on QPA?

[Matteo Zoppi]

Hello everybody!
I am a new reader of this mailing list and an enthusiastic user of GSAS on
XRPD though not still expert. I have the problem of estimating the wt%
error of components of a multiphase mixture (that I made). Does anybody
know how to calculate this error from the data given in the *.LST file? It
seems that the error I get is too small (!), what could it be responsible
for it?  Any suggestion or information about literature on the issue?
Thanks

Matteo Zoppi
[EMAIL PROTECTED]