From 5efdc376540029ee2edf99be54916608f46c95a1 Mon Sep 17 00:00:00 2001
From: Jyothi Babu Araja <arajajyothibabu@apxor.com>
Date: Mon, 25 Sep 2017 18:48:10 +0530
Subject: [PATCH] percentage of columns fix

---
 package.json     | 2 +-
 src/DataStore.js | 9 +++++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index 9a863ff..113355e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cohort-graph",
-  "version": "0.8.0",
+  "version": "0.8.5",
   "description": "Cohort Analysis Graph",
   "main": "lib/cohortgraph.js",
   "scripts": {
diff --git a/src/DataStore.js b/src/DataStore.js
index b63d37c..014c7d3 100644
--- a/src/DataStore.js
+++ b/src/DataStore.js
@@ -174,14 +174,19 @@ export default class DataStore {
      *
      * @param arr
      * @param index
+     * @param baseIndex
      * @returns {number}
      * @private
      */
-    _sumOfFirstColumnUpToIndex = (arr, index) => {
+    _sumOfFirstColumnUpToIndex = (arr, index, baseIndex) => {
         let sum = 0;
         for(let i = 0; i <= index; i++){
             try {
-                sum += arr[i][1].value;
+                if(arr[i][baseIndex]){ //If value exists upto this index FIXME: need better understanding than this
+                    sum += arr[i][1].value;
+                }else{
+                    break;
+                }
             }catch(e){
                 break;
             }