Dear Shailendra Pal, Welcome to the R-help mailing list! Most of us are not members of RStudio in any way. Your problem is also purely about programming in R, so you've come to the right place. You have also done the right thing by showing us the code.
On Fri, 8 Dec 2023 16:08:51 +0530 shailendra pal <palshailend...@gmail.com> wrote: > vare.cca <- cca(sptrans, envtrans) > Error in cca.default(sptrans, envtrans) : > all row sums must be >0 in the community data matrix One of the most important tools provided by R is its online help system. Use it to look up the documentation for the function you're having problems with. You can prepend a question mark to most function calls and get a help page in response; failing that, help('cca') should also work. Here's what it says: >> ## Default S3 method: >> cca(X, Y, Z, ...) >> X Community data matrix. >> Y Constraining matrix, typically of environmental variables In other words, the "community data matrix" mentioned in the error message is your `sptrans` data.frame. The function complains that at least some of the rows don't have a positive sum, which is a requirement of the method. Can you spot the problem by looking at the data or using rowSums()? -- Best regards, Ivan ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.