Maybe you can try one of Jim Lindsey's libraries available at http://popgen.unimaas.nl/~jlindsey/rcode.html
If I recall, there is a function 'elliptic' in his 'growth' package that may help you. Otherwise, you can use one of R's nonlinear optimization functions, e.g. 'nlm', 'optim', etc. HTH -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Schacka24 Sent: Monday, December 01, 2008 10:12 AM To: r-help@r-project.org Subject: [R] Parameters of exponential power density Hello! I must estimate the parameters of a exponential power density. There is the normalp package, but this works only for a shape parameter bigger than 1. But what should i do if the shape parameter is less than 1? (Sorry for my english) Thank you very much for help! -- View this message in context: http://www.nabble.com/Parameters-of-exponential-power-density-tp20774495 p20774495.html Sent from the R help mailing list archive at Nabble.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. ______________________________________________ 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.