Changeset 82 for tests/sam_rosenbrock.py

Timestamp:

01/26/09 16:12:08 (7 years ago)

Author:

mmckerns

Message:

scipy.optimize.fmin fit to mystic.Solve interface;
mystic handlers, etc added to fmin solver;
VerboseSow? edited to handle simplex-type cloud of results per iteration

File:

• tests/sam_rosenbrock.py (modified) (2 diffs)

tests/sam_rosenbrock.py

@@ -12 +12 @@
 import sam
 from test_rosenbrock import *
-from mystic.nelder_mead import fmin, Sow
-from mystic import getch
+from mystic.scipy_optimize_fmin import NelderMeadSimplexSolver as fmin
+from mystic.nmtools import IterationRelativeError as IRE
+from mystic import getch, Sow
 
 def draw_contour():
@@ -40 +41 @@
 def run_once(x0,x1):
     simplex = Sow()
-    sol = fmin(rosen, [x0, x1], retall = True, StepMonitor = simplex)
+    xinit = [x0, x1]
+
+    solver = fmin(len(xinit))
+    solver.SetInitialPoints(xinit)
+    killme = IRE(1e-4,1e-4)
+    solver.Solve(rosen, termination=killme, StepMonitor = simplex)
+    sol = solver.Solution()
     
     for x in simplex.x: