From 3d24dcedf85a52128c4bca0179bcb6d2d2c65b33 Mon Sep 17 00:00:00 2001
From: jgould <jgould@broadinstitute.org>
Date: Fri, 29 Jul 2016 12:24:45 -0400
Subject: [PATCH] added value to count

---
 src/matrix/vector_util.js | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/matrix/vector_util.js b/src/matrix/vector_util.js
index 9344f8c..89842c9 100644
--- a/src/matrix/vector_util.js
+++ b/src/matrix/vector_util.js
@@ -39,6 +39,26 @@ morpheus.VectorUtil.createValueToCountMap = function (vector) {
 	}
 	return map;
 };
+
+morpheus.VectorUtil.createValuesToCountMap = function (vectors) {
+	var map = new morpheus.Map();
+	var nvectors = vectors.length;
+	if (vectors[0] == null) {
+		throw 'no vectors found';
+	}
+	for (var i = 0, nitems = vectors[0].size(); i < nitems; i++) {
+		var array = [];
+		for (var j = 0; j < nvectors; j++) {
+			var vector = vectors[j];
+			var val = vector.getValue(i);
+			array.push(val);
+		}
+		var key = new morpheus.Identifier(array);
+		var count = map.get(key) || 0;
+		map.set(key, count + 1);
+	}
+	return map;
+};
 morpheus.VectorUtil.maybeConvertToStringArray = function (vector, delim) {
 	var newValues = [];
 	var regex = new RegExp(delim);
@@ -153,7 +173,7 @@ morpheus.VectorUtil.getValues = function (vector, excludeNull) {
 		}
 
 		set.add(val);
-		
+
 	}
 	var array = set.values();
 	array.sort(morpheus.SortKey.ASCENDING_COMPARATOR);
-- 
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