On Wed, Aug 15, 2012 at 9:08 PM, li li <hannah....@gmail.com> wrote: > Dear all, > I have a question on the four parameter logistic regression. > Not sure about how to set the start values for the parameters. > Can anyone familiar with this give some hint? Thanks so much. > >
See ?SSfpl which is the self-starter four parameter logistic, i.e. no starting values needed when you use it as in the example at the bottom of the help page. -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ 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.
