[ferret_users] How to make a plot with 2 Y axis

To: "ferret_users@xxxxxxxx" <ferret_users@xxxxxxxx>

Subject: [ferret_users] How to make a plot with 2 Y axis

From: "Friedlingstein, Pierre" <P.Friedlingstein@xxxxxxxxxxxx>

Date: Mon, 8 Nov 2021 14:30:40 +0000

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Thread-topic: [ferret_users] How to make a plot with 2 Y axis

Hi all,

I’m trying to make a plot with 2 time series, each on a separate Y axis (one on the left side and one on the right side of the plot).

I’ve tried left_axis_plot and right_axis_plot.

also tried multi_yaxis_plot1 and multi_yaxis_overlay.

Nothing really works well as I can’t find the way to get the 2^nd Y axis at the right side of my plot. It’s either on the left of the main axis (using “-“ for multi_yaxis_overlay), or it’s just at the right of the left plot, ie in the middle of the figure ! (“+” for multi_yaxis_overlay, see screenshot)

Also I don’t know how to control the format of the axis anymore (ppl xfor, yfor, etc…).

I can send my data but essentially, it’s two time series. For example:

DEFINE AXIS/T=2021:2030:1/UNIT=year tax

DEFINE GRID/T=tax my_grid

SET GRID my_grid

Var1 = 500 - 50*(T-2020)

Var2 = 25/(10-(T-2020))

Thanks for any help.

Pierre

Prof. Pierre Friedlingstein
University of Exeter
CEMPS, Earth System Science
Laver Building, Room 720
North Park Road
Exeter, EX4 4QE, UK
Phone +44 1392 725279
Mobile +44 777 094 1126
Twitter @PFriedling

http://emps.exeter.ac.uk/mathematics/staff/pf229

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