Index: ../trunk-jpl/src/m/classes/inversion.py
===================================================================
--- ../trunk-jpl/src/m/classes/inversion.py	(revision 13516)
+++ ../trunk-jpl/src/m/classes/inversion.py	(revision 13517)
@@ -170,13 +170,13 @@
 		WriteData(fid,'object',self,'fieldname','thickness_obs','format','DoubleMat','mattype',1)
 
 		#process control parameters
-		num_control_parameters=numpy.size(self.control_parameters)
-		data=[StringToEnum(self.control_parameters[i])[0] for i in xrange(0,num_control_parameters)]
+		num_control_parameters=len(self.control_parameters)
+		data=numpy.array([StringToEnum(control_parameter)[0] for control_parameter in self.control_parameters])
 		WriteData(fid,'data',data,'enum',InversionControlParametersEnum(),'format','DoubleMat','mattype',3)
 		WriteData(fid,'data',num_control_parameters,'enum',InversionNumControlParametersEnum(),'format','Integer')
 
 		#process cost functions
-		num_cost_functions=size(self.cost_functions,1)
+		num_cost_functions=numpy.size(self.cost_functions,1)
 		data=self.cost_functions
 		data[numpy.nonzero(data==101)]=SurfaceAbsVelMisfitEnum()
 		data[numpy.nonzero(data==102)]=SurfaceRelVelMisfitEnum()