[R] ed50

Dr. Ruben Rao Thanks for your reply .But I don't know that how should I reparameterise the model.can you reply me in detail for reparameterization and taylor series for delta method . Thanks   --- On Tue, 7/13/10, Rubén Roa wrote: From: Rubén Roa Subject: RE: [R] ed50 To: "Dipa

Re: [R] ed50

I don't know how to reparameterise the model. will you please give the detail for reparameterisation and delta method? Thanks --- On Tue, 7/13/10, Rubén Roa wrote: From: Rubén Roa Subject: RE: [R] ed50 To: "Dipa Hari" , r-help@r-project.org Date: Tuesday, July 13

[R] ed50

I am using semiparametric Model  library(mgcv) sm1=gam(y~x1+s(x2),family=binomial, f) How should I  find out standard error for ed50 for the above model ED50 =( -sm1$coef[1]-f(x2)) / sm1$coef [2]   f(x2) is estimated value for non parametric term.   Thanks [[alternative HTML vers

[R] mgcv

Hello Sir, I am using mgcv package for my data. My model is y~x1+f(x2),I want to find out the function f(x2) . Following is the code.   sm1=gam(y~x1+s(x2),family=binomial, f) summary(sm1) plot(sm1,residuals=TRUE, xlab="AGE",pch=20)   In this plot I am getting S(x2,1.93) on y axixs  How shou