Hello All,
I cant seem to do a trig regression in R.
The equation is as follows : y = a+b*(sin((2*pi*x/360) - c))^2
a, b, c are coefs that I want.
y, x are input vectors.
The equation I put into R: lm(y ~ sin(2*pi*x/360)^2)
This equation is missing the c and I dont get the right answer.
Also, I dont know how to plot the lm over the x values instead of the
indices.
Any help is sincerely appreciated.
Thank you all very much.
--
Aaditya Nanduri
aaditya.nand...@gmail.com
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
