Fixed nTrees and 'Unknown' issues

nTrees parameter was not getting passed to Random Forest. I also changed
MDSBuilder to use the last input raster instead of "Unknown" for the
PARC template & folder, to prevent it from throwing an error.

Author: mmfink

init.py

@@ -514,6 +514,7 @@ def __init__(self):
         self.abbrev = 'rf'
         self.port_map.update({'Seed':('seed', utils.get_seed, True),  #  This is a BRT specific port
                          'mTry': ('mtry', None, False),  #  This is a Random Forest specific port
+                         'nTrees': ('ntree', None, False), # MMF 02/22/2016 - nTrees was not getting passed
                          'nodesize': ('nodeS', None, False),  #  This is a Random Forest specific port
                          'replace': ('sampR', utils.R_boolean, False),  #  This is a Random Forest specific port
                          'maxnodes': ('maxN', None, False),  #  This is a Random Forest specific port

pySAHM/MDSBuilder.py

@@ -238,9 +238,10 @@ def constructEmptyMDS(self):
             self.parc_template = inputs_header[5]
             parc_workspace = inputs_header[6]
         else:
-            self.parc_template = "Unknown"
-            parc_workspace = "Unknown"
-
+##            self.parc_template = "Unknown" #MMF 02/22/2016 - I usually "pre-PARC" my data, and this
+##            parc_workspace = "Unknown"     #causes problems. SAHM doesn't know what to do w/ the unknowns.
+            self.parc_template = temp_raster
+            parc_workspace = temp_raster
 
         secondRow = [original_field_data, field_data_template, ""] + ["1" for elem in self.inputs]
         thirdRow = [self.parc_template, parc_workspace, ""] + self.inputs