It sounds like one of your columns is all zeros. Look at the input data to make sure all observations have positive values.
-----Original Message----- From: R-sig-ecology <r-sig-ecology-boun...@r-project.org> On Behalf Of SANDILE N KHANYILE Sent: Saturday, March 16, 2024 2:32 PM To: r-sig-ecology@r-project.org Subject: [EXTERNAL] [R-sig-eco] Error running an R code This email has been received from outside of DOI - Use caution before clicking on links, opening attachments, or responding. Fellow Scientists, Please help me. I have environmental data (73 observations and 8 variables) and species data (73 observations and 24 variables). After running code, get the following error: Error in cca.default(d$X, d$Y, d$Z) : all row sums must be >0 in the community data matrix However the code run just fine when use another species data with more variables (73 observations and 169 variables) Thank You In advance.S. Khanyile [[alternative HTML version deleted]] _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology