Christopher Hatherly <Christopher.Hatherly <at> anu.edu.au> writes:
I am trying to fit an ellipse equation to some spatial human factors data, varying the major and minor axes randomly and specifying an exp~ variogram for errors. Using normally-distributed random effects produces some -ve minor/major axes. I am hoping to be able to specify a gamma distribution to overcome this, but have not been able to work out how. Does anybody know an R function that implements lme with gamma-distributed random effects? --------------- One of the function in DPpackage might give you a starter. Or use RBrugs, but that will required some additional reading. Or better, try to fit you model in some existing statistical context, what you want to do it seem a bit hand-knit to me and resolvable via book-lookup. Dieter ______________________________________________ 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.
