[R] how to plot y-axis on the right of x-axis

[David Winsemius]

On Aug 24, 2010, at 7:12 PM, elaine kuo wrote:

> Dear List,
>
> I have a richness data distributing across 20 N to 20 S latitude.  
> (120 E-140
> E longitude).
>
>
> I would like to draw the richness in the north hemisphere and a  
> regression
> line in the plot
> (x-axis: latitude, y-axis: richness in the north hemisphere).
> The above demand is done using plot.
>
> Then, south hemisphere richness and regression are required to be  
> generated
> using
> the same y-axis above but an x-axis on the left side of the y-axis.
> (The higher latitude in the south hemisphere, the left it would move)
>
> Please kindly share how to design the south plot and regression line  
> for
> richness.
> Also, please advise if any more info is in need.

Reproducible code, .... now and forever shall be ....  world without  
end, amen.

> #------------------
> and provide commented, minimal, self-contained, reproducible code.
#------------------

David Winsemius, MD
West Hartford, CT