diff --git a/python_tools/void_python_tools/voidUtil/matchUtil.py b/python_tools/void_python_tools/voidUtil/matchUtil.py
new file mode 100755
index 0000000..8222f21
--- /dev/null
+++ b/python_tools/void_python_tools/voidUtil/matchUtil.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python
+#+
+#   VIDE -- Void IDentification and Examination -- ./crossCompare/analysis/mergerTree.py
+#   Copyright (C) 2010-2013 Guilhem Lavaux
+#   Copyright (C) 2011-2013 P. M. Sutter
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; version 2 of the License.
+# 
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program; if not, write to the Free Software Foundation, Inc.,
+#   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#+
+
+
+from void_python_tools.backend import *
+import imp
+import pickle
+import os
+import matplotlib.pyplot as plt
+import numpy as np
+import argparse
+
+def compareCatalogs(baseCatalogDir, compareCatalogDir, 
+                    outputDir="./", logDir="./", 
+                    matchMethod="useID", dataPortion="central",
+                    strictMatch=True, 
+                    pathToCTools="../../../c_tools")
+
+# reports the overlap between two void catalogs
+#  baseCatalogDir: directory of catalog 1
+#  compareCatagDir: directory of catalog 2
+#  outputDir: directory to place outputs
+#  logDir: directory to place log files
+#  matchMethod: "useID" to use unique IDs, "prox" to use overlap of Voronoi cells
+#  dataPortion: "central" or "all"
+#  strictMatch: if True, only attempt to match to trimmed catalog
+#  pathToCTools: path to location of VIDE c_tools directory
+
+if not os.access(outputDir, os.F_OK):
+  os.makedirs(outputDir)
+
+if not os.access(logDir, os.F_OK):
+  os.makedirs(logDir)
+
+outFileName = outputDir + "/" + "voidOverlap" #+ ".dat"
+
+with open(baseCatalogDir+"/sample_info.dat", 'rb') as input:
+  baseSample = pickle.load(input)
+
+with open(compareCatalogDir+"/sample_info.dat", 'rb') as input:
+  sample = pickle.load(input)
+
+print " Comparing", baseSample.fullName, "to", sample.fullName, "...",
+sys.stdout.flush()
+
+sampleName = sample.fullName
+
+binPath = pathToCTools+"/analysis/voidOverlap"
+logFile = logDir+"/compare_"+baseSample.fullName+"_"+sampleName+".out"
+stepOutputFileName = outFileName + "_" + baseSample.fullName + "_" + \
+                     sampleName + "_"
+
+launchVoidOverlap(baseSample, sample, baseCatalogDir, 
+                  compareCatalogDir, binPath, 
+                  thisDataPortion=dataPortion, logFile=logFile,
+                  continueRun=False, workDir=workDir,
+                  outputFile=stepOutputFileName,
+                  matchMethod=matchMethod,
+                  strictMatch=strictMatch)
+
+print " Done!"
diff --git a/analysis/xcor.py b/python_tools/void_python_tools/voidUtil/xcorUtil.py
similarity index 94%
rename from analysis/xcor.py
rename to python_tools/void_python_tools/voidUtil/xcorUtil.py
index 168899f..c0e8609 100644
--- a/analysis/xcor.py
+++ b/python_tools/void_python_tools/voidUtil/xcorUtil.py
@@ -58,29 +58,26 @@ import sys
 
 # ------------------------------------------------------------------------------
 
-dataNameBase = "xcor"
+def computeCrossCor(catalogDir, 
+                    outputDir="./", logDir="./",
+                    matchMethod="useID", dataPortion="central",
+                    strictMatch=True,
+                    pathToCTools="../../../c_tools")
 
-parser = argparse.ArgumentParser(description='Analyze.')
-parser.add_argument('--parmFile', dest='parmFile', default='datasetsToAnalyze.py',
-                    help='path to parameter file')
-args = parser.parse_args()
+# Computes void-void and void-matter(galaxy) correlations
+#  baseCatalogDir: directory of catalog 
+#  compareCatagDir: directory of catalog 2
+#  outputDir: directory to place outputs
+#  logDir: directory to place log files
+#  matchMethod: "useID" to use unique IDs, "prox" to use overlap of Voronoi cells
+#  dataPortion: "central" or "all"
+#  strictMatch: if True, only attempt to match to trimmed catalog
+#  pathToCTools: path to location of VIDE c_tools directory
 
-# ------------------------------------------------------------------------------
+  if not os.access(outputDir, os.F_OK):
+    os.makedirs(outputDir)
 
-filename = args.parmFile
-print " Loading parameters from", filename
-if not os.access(filename, os.F_OK):
-  print "  Cannot find parameter file %s!" % filename
-  exit(-1)
-parms = imp.load_source("name", filename)
-globals().update(vars(parms))
-
-if not os.access(outputDir, os.F_OK):
-  os.makedirs(outputDir)
-
-for (iSample, sampleDir) in enumerate(sampleDirList):
-
-  with open(voidBaseDir+sampleDir+"/sample_info.dat", 'rb') as input:
+  with open(catalogDir+"/sample_info.dat", 'rb') as input:
     sample = pickle.load(input)
 
   print " Working with", sample.fullName, "...",