@amania,

After looking into your code, it seems you have parsed dataPoints into a variable called dataPoints. But you are assigning a different variable within chart option/data.

Passing the variable dataPoints within chart options/data should work fine in your case.

If you are still facing the issue kindly create a sample project reproducing the issue and share it with us along with the sample CSV over Google-Drive or Onedrive so that we can run your code locally, understand your scenario better and help you out.

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Indranil Deo
Team CanvasJS