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#9293

cProg,

There are few issues with the code.
– Y value you are assigning is a String instead of a Number.
– drawChart method is not defined
– dataPoints is null Array

What you can do is
– Assign a Number as y-value.
– Define a method drawChart to update dataPoints as show below.

function drawChart(dataPoints){
	chart.options.data[0].dataPoints = dataPoints;
	chart.render();
}