How to use different Y axes?

ROOT
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Dear All,

I have two TGraphs and would like to draw them to the same pad to check correlations.
The problem is that their Y values are in different ranges. How is it possible to use different Y axes for the two TGraphs? The black shoud be between -200 and -170, the blue between 0 and 30. I found some examples for histograms, but I can not apply them for TGraphs.
Source code and data file attached.

Thank you for your help.

draw.C (1.2 KB)
histos.root (428.8 KB)

temperatures
temperatures.png1922×975 13.6 KB

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Thank you, this is exactly what I was looking for.

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