Displaying 1 result from an estimated 1 matches for "categorigal".
Did you mean:
categorical
2011 May 26
0
Using deriv3() in a separated nonlinear regression model
Hi all,
I'm adjusting a nonlinear regression model for data that has a categorigal
variable present. So, I can use nls() to do this considering the categorical
variable, like this
#------------------------------------------------------------
da <- expand.grid(tr=gl(2,1,la=c("tr")), x=1:12)
da$y <- 10*da$x/(3+da$x)+rnorm(da$x,0,0.1)
plot(y~x, da)
n0 <- nls(y~A...