Thank you for your response.
But the data comes is dynamic it may be series of 91.000001 , 91.000002 , 91.0000003
or 4.000001 , 4.000002 , 4.0000003
or 65.0000005 , 65.00006 , 65.000009
So I can not hardcode the minimum and maximum value . Is there any way to provide minimum and maximum values dynamically , like when I update each value on chart so I can also set minimum and maximum by adding and subtracting 0.000001 from the coming value . Is there any way to do that ?