Re: curves

[Jeremy S Pal <jpal@xxxxxxx>]

  Hi -

I do not know if ferret can directly do what you are asking, but
it seems that it would be straight forward to do it by defining
two identical viewports.  In the first viewport, you would plot
temperature as a function of time T(t).  In the second, you would
plot salinity as a function of time S(t) with the y-axis written
on the right side.  If you use gridlines, you'll need to make
sure that they match up by using the ylimits command.  Here is an
example:

define view/xlim=0,1/ylim=0,1 view1
define view/xlim=0,1/ylim=0,1 view2
set view view1
plot temperature[l=1:24]
set view view2
ppl axlabp 1 1
plot salinity[l=1:24]


I hope this helps.

  - Jeremy


On Tue, 4 Apr 2000, boyin huang wrote:

> Dear Ferret users:
> 
> How can we put two curves at the same plot?
> 
> One curve is temperature as a function of time T(t).
> Another curve is salinity as a function of time S(t).
> They have different unit and scale.
> 
> I would use left coordinate for T and right one for S.
> 
> Any suggestion and sample code are welcomed.
> 
> Thank you for your attention.
> 
> --
> Boyin  Huang, Mr.
> Department of Atmospheric and Oceanic Sciences
> University of Wisconsin at Madison
> 1225 W. Dayton St., Madison, WI-53706
> Tel. 608-262-0798(o) 231-3224(h) Fax. 262-0166 (o) 231-3224(h)
> http://blue.meteor.wisc.edu/~byh/career
> 
> 
>