Proper output not displaying in 'Customizing Charts' topic of 'Visualization with Google Charts' section

In the ‘Customizing Charts’ topic of ‘Visualization with Google Charts’ section, my code is not working properly even though I have entered it correctly as setCrosshair() function is not working and I am not getting a proper output for the this function and not seeing any dot marks at the points.
Kindly help!!

Hi @kp2061,

Could you please share a screenshot of the Graph window? This will enable us to better assist you. Also, ensure that you’ve thoroughly checked the connection and confirmed whether the sensor is properly collecting the data or not.

You can refer to for more detailed info regarding the Area Graph.