Changeset 82 for tests/test_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/test_rosenbrock.py (modified) (2 diffs)

tests/test_rosenbrock.py

@@ -13 +13 @@
 from mystic.differential_evolution import DifferentialEvolutionSolver
 from mystic.detools import Best1Exp, Rand1Exp, Best2Bin, ChangeOverGeneration, VTR
-from mystic.nelder_mead import fmin, rosen
+from mystic.scipy_optimize_fmin import __rosen as rosen
+from mystic.scipy_optimize_fmin import NelderMeadSimplexSolver as fmin
+from mystic.nmtools import IterationRelativeError as IRE
 from mystic import Sow
 
@@ -45 +47 @@
     esow= Sow()
     ssow= Sow()
-    sol = fmin(rosen, [random.random() for j in range(ND)], full_output=1, retall=1, EvaluationMonitor=esow, SimplexMonitor=ssow)
-    print sol[0]
+    xinit = [random.random() for j in range(ND)]
+
+    solver = fmin(len(xinit))
+    solver.SetInitialPoints(xinit)
+    killme = IRE(1e-4,1e-4)
+    solver.Solve(rosen, killme, EvaluationMonitor = esow, StepMonitor = ssow)
+    sol = solver.Solution()
+    print sol
  
     print len(esow.x)