R

Statistician needed.

I have the following R script:
http://pastebin.com/RzLL4tPQ

I want to focus on lines 20 and 21.
They draw an quadratic curve that fits the data in my plot nicely BUT the line stop at the last data point and I would like it to continue so it intersects with the upper line.

http://i.imgur.com/BQAOn.png

How do I achieve this?

Any help is appreciated.

Anyone know of a good R compiler? I can't get py2exe to work with matplotlib

use predict.lm

>>3
Please elaborate.

>>4

fit <- lm(your model)
x<-c(your desired range)
lines(x, predict.lm(fit, x))

or something similar, possible errors should point you in the right direction. It's been a while since I used R.