don't ignore zero values in the first column of DataTables

[dygraphs.git] / dygraph-combined.js

diff --git a/dygraph-combined.js b/dygraph-combined.js
index 76a06bd..4936efd 100644 (file)
--- a/dygraph-combined.js
+++ b/dygraph-combined.js
@@ -1617,7 +1617,8 @@ return null;
 var ret=[];
 for(var i=0;i<rows;i++){
 var row=[];
-if(!data.getValue(i,0)){
+if(typeof (data.getValue(i,0))==="undefined"||data.getValue(i,0)===null){
+this.warning("Ignoring row "+i+" of DataTable because of undefined or null first column.");
 continue;
 }
 if(_275=="date"){