[R] add different regression lines for groups on ggplot

Ye Lin yelin at lbl.gov
Fri Jul 26 21:21:23 CEST 2013

Hey All,

I need to apply different regression lines to different group on my ggplot,
and here is the code I use:


However the regression for different groups is as below:

AL1/AL2: log(y)~I(1/x)
AL3: log(y)~log(x)

How can I apply each regression equation on the same ggplot?

Also I have an issue that if I use the code above, the regression lines are
not overlapped on top of my data points.

Thanks for your help!

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