Kang Min <ngokangmin <at> gmail.com> writes: > I have an error with fisher.alpha from the vegan package. > > > fisher.alpha(data[[1]]) > Error in nlm(Dev.logseries, n.r = n.r, p = p, N = N, hessian = > TRUE, ...) : > missing value in parameter > > I am trying to find fisher alpha for a list of 100 data frames, and I > tried it on individual data frames in the list, which gave me the > error above. > I have every data frame in the same format as the example data BCI, > species as column names and quadrats as row names.
It's almost impossible to answer this question without a reproducible example. Does the same thing happen with fisher.alpha(head(data[[1]])) ? If so, can you post the results of dput(head(data[[1]])) ? If not, please spend some time cutting the problem down to something that can be posted. If that's really hard, post your data on the web somewhere and post a link to it. (Sending attachments to the mailing list is a bit dicey.) Ben Bolker ______________________________________________ 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.
