Re: [R] Nonlinear regression aborting due to error

Dennis Fisher wrote on 10/12/2011 08:06:12 AM: > > jean > > initial values: > INITEMAX <- -25 > INITEFFECT <- 25 > INITC50 <- 14 > GAMMA <- INITGAMMA <- 500 > > see below for other issues. > > dennis > > Dennis Fisher MD > P < (The "P Less

Re: [R] Nonlinear regression aborting due to error

Dennis Fisher wrote on 10/11/2011 07:20:35 PM: > > Colleagues, > > I am fitting an Emax model using nls. The code is: >START <- list(EMAX=INITEMAX, EFFECT=INITEFFECT, C50=INITC50) >CONTROL <- list(maxiter=1000, warnOnly=T) >#FORMULA <- as.formula(YVAR ~ EMAX - EFFEC