Changeset 86

Timestamp:

01/29/09 17:41:38 (7 years ago)

Author:

mmckerns

Message:

added TODO list; made getCost example cleaner

Files:

• TODO (added)
• python/example_getCost.py (modified) (2 diffs)

python/example_getCost.py

@@ -28 +28 @@
     fwd = ForwardPolyFactory(params)
     x = (array([range(101)])-50.)[0]
-    return fwd(x)
+    return x,fwd(x)
 
 
@@ -49 +49 @@
 
 def plot_sol(params,linestyle='b-'):
-    x = (array([range(101)])-50.)[0]
     d = data(params)
-    pylab.plot(x,d,'%s'%linestyle,linewidth=2.0)
+    pylab.plot(d[0],d[1],'%s'%linestyle,linewidth=2.0)
     pylab.axis(plotview)
     return
 
+from numpy import sum as numpysum
+def cost_function(params):
+    x = data(params)[1] - datapts
+    return numpysum(real((conjugate(x)*x)))
+
 
 if __name__ == '__main__':
-    x = (array([range(101)])-50.)[0]
     plotview = [-60,60, 0,2500]
     target = [1., 2., 1.]
-    datapts = data(target)
+    x,datapts = data(target)
 
+   #myCost = cost_function
     F = CostFactory()
     F.addModel(ForwardPolyFactory,'poly',3)