The following is an interim distribution of the VGAM package. It fixes up some bugs that have been found between the latest official version and the next version to be officially released on CRAN. This website is not 'official'.

These have been tested 'okay' for R version 4.5.2. For this, the following packages may need to be installed: nlme, stringi for knitr. To do this in Linux, download the source files and install them from the command line.

Please find some notes:

  1. In VGAM 1.1-14 (released in Dec 2025) all link functions end in "link", e.g., loglink(), logitlink(), etc. .
  2. R version 4.1.0 or higher is necessary now. Sorry, Mac versions are only available on CRAN.
  3. Recently, some functions and data sets have been moved from VGAM to VGAMdata. Having both packages are recommended.
  4. The following will now work (version 1.1-14 onwards): .
    Link <- "probitlink"
    pneumo <- transform(pneumo, let = log(exposure.time))
    vglm(cbind(normal, mild, severe) ~ let,
         cumulative(Link, parallel = TRUE), pneumo)
    
    For this however, code such as
    ldata <- data.frame(y = rnorm(2000, 0.5, 0.1))  # Improper data
    vglm(y ~ 1, data = ldata,
         leipnik(llambda = logofflink(offset = 1),
                 ilambda = 1))
    
    needs to be changed to
    vglm(y ~ 1, data = ldata,
         leipnik(llambda = "logofflink(offset = 1)",
                 ilambda = 1))
    
    That is, use quotes.

Thanks to Uwe Ligges for his Win-Builder web page.




VGAM for Linux etc

[ 1.6 MB gzipped tar file (VGAM_1.1-15.tar.gz) ]






VGAM for Windows (32+64-bit)

[ 7.7 MB zip file (VGAM_1.1-15.zip) ]

















Last modified: Tue Dec 2 12:11:55 NZDT 2025




Return to Thomas Yee's personal home page

Return to Departmental Homepage