[R] scatter plot & equation

[David Winsemius]

On Nov 22, 2009, at 11:27 AM, Rofizah Mohammad wrote:

> Hi,
>
> If I have 2D data set say (x,y) and I can do scatter plot by using  
> plot(x,y)
> command.
> How can I add in this scatter plot the equations curve say
>
> 2X2 + 3Y2 – 6X – 7Y + 9 = 0.
>

No executable example... so if you are too lazy to construct one, then  
I would suggest looking for worked examples at one of the graphics  
galleries.

Perhaps:

http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=44



> Regards
>
> Rofizah
>
> 	[[alternative HTML version deleted]]
>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT