Katherine Gobin
2014-Nov-06 06:04 UTC
[R] VGAM package : Frechet distribution - 2 parameter estimation
Dear R forum, I am trying to execute following code (Page no 259 - VGAM.pdf) # ......................................................................................................................... library(VGAM) set.seed(123) fdata <- data.frame(y1 = rfrechet(nn <- 1000, shape = 2 + exp(1))) with(fdata, hist(y1)) fit2 <- vglm(y1 ~ 1, frechet, data = fdata, trace = TRUE) # ......................................................................................................................... However, I receive following error Error in vglm(y1 ~ 1, frechet, data = fdata, trace = TRUE) : object 'frechet' not found Earlier there used to be a function called "frechet3" which I guess has been withdrawn by VGAM. Kindly guide Katherine [[alternative HTML version deleted]]
Michael Dewey
2014-Nov-06 09:24 UTC
[R] VGAM package : Frechet distribution - 2 parameter estimation
On 06/11/2014 06:04, Katherine Gobin wrote:> Dear R forum, > > I am trying to execute following code (Page no 259 - VGAM.pdf) > > # ......................................................................................................................... > > library(VGAM) > > set.seed(123) > fdata <- data.frame(y1 = rfrechet(nn <- 1000, shape = 2 + exp(1))) > with(fdata, hist(y1)) > fit2 <- vglm(y1 ~ 1, frechet, data = fdata, trace = TRUE) > > # ......................................................................................................................... >Is it not called frechet2?> > However, I receive following error > > Error in vglm(y1 ~ 1, frechet, data = fdata, trace = TRUE) : > object 'frechet' not found > > > Earlier there used to be a function called "frechet3" which I guess has been withdrawn by VGAM. > > Kindly guide > > Katherine > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at 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. > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2015.0.5557 / Virus Database: 4189/8518 - Release Date: 11/05/14 > >-- Michael http://www.dewey.myzen.co.uk