Qliksense On fly charts using predefined measure

[gokulnath2592]

Hi Community,

I am trying to create an on-fly Visualization in Qliksense using Predefined Measures(Master items). When I tried to use below code, I am getting grouped bar chart. My requirement is for measure 1 Line chart and Measure 2 marker. 

I have tried to add series JSON code to achieve this  but it is not accepting.  Please help me how to achieve this.  

app.visualization.create(
'combochart',
[
"Date",
{"qLibraryId":"cdfgg","qType":"measure" },
{"qLibraryId":"asrggx","qType":"measure"}

],

{
"showTitles": true,
"title": "Net scores"
}
).then(function(vis){
vis.show("QV02");
});

Thanks,

Gokul