Revision: 486
http://rpy.svn.sourceforge.net/rpy/?rev=486&view=rev
Author: warnes
Date: 2008-04-10 09:50:51 -0700 (Thu, 10 Apr 2008)
Log Message:
-----------
Add simple neural net example
Added Paths:
-----------
trunk/rpy/examples/nnet.py
Added: trunk/rpy/examples/nnet.py
===================================================================
--- trunk/rpy/examples/nnet.py (rev 0)
+++ trunk/rpy/examples/nnet.py 2008-04-10 16:50:51 UTC (rev 486)
@@ -0,0 +1,29 @@
+from rpy import *
+
+# avoid automatic conversion
+set_default_mode(NO_CONVERSION)
+
+
+r.library("nnet")
+model = r("Fxy~x+y")
+
+df = r.data_frame(x = r.c(0,2,5,10,15)
+ ,y = r.c(0,2,5,8,10)
+ ,Fxy = r.c(0,2,5,8,10))
+
+NNModel = r.nnet(model, data = df
+ , size =10, decay =1e-3
+ , lineout=True, skip=True
+ , maxit=1000, Hess =True)
+
+XG = r.expand_grid(x = r.seq(0,7,1), y = r.seq(0,7,1))
+x = r.seq(0,7,1)
+y = r.seq(0,7,1)
+
+
+# turn automatic conversion back on
+set_default_mode(BASIC_CONVERSION)
+
+fit = r.predict(NNModel,XG)
+print fit
+
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