Type mismatch for number in Google Chart API

Question

I have an array and the second column with values like this 2050.878456 and inside my javascript function to create a Area Chart I made the following

Answer 1

I spotted the same issue.

not working:

data.addRow([v, obd[v].engine_rpm]);

working:

data.addRow([v, Number(obd[v].engine_rpm)]);