Changeset 2846 for trunk/GSASIIobj.py

Timestamp:

May 30, 2017 4:40:30 PM (6 years ago)

Author:

vondreele

Message:

implement SVD inversion (Moore Penrose invert routine) in Hessian LSQ
clean up commented out code replaced by ValidatedTextCtrl?
set default dM/M to 0.001 (from 0.0001) - more reasonable convergence criterion

File:

• trunk/GSASIIobj.py (modified) (1 diff)

trunk/GSASIIobj.py

@@ -874 +874 @@
 DefaultControls = {
     'deriv type':'analytic Hessian',
-    'min dM/M':0.0001,'shift factor':1.,'max cyc':3,'F**2':False,
+    'min dM/M':0.001,'shift factor':1.,'max cyc':3,'F**2':False,'SVDtol':1.e-6,
     'UsrReject':{'minF/sig':0,'MinExt':0.01,'MaxDF/F':100.,'MaxD':500.,'MinD':0.05},
     'Copy2Next':False,'Reverse Seq':False,'HatomFix':False,