Hi there, I'm using presence-absence data in a gam (i.e. 0 or 1 as values) I am trying to run a gam with 'dummy covariates' i.e. 1~1 unfortunately my model: * model<-gam(1~1, data=bats, family=negbin)*
keeps putting out: * Error in gam(1 ~ 1, data = bats, family = negbin) : Not enough (non-NA) data to do anything meaningful* Is there a specific reason it would do this? I have tried using various actions on NAs, na.pass etc, as well as asking it to turn all NAs to 0 but to no avail. I would post the data here but its rather long, basically 28x104 matrix of 0/1 with headers 'v1:v28' .The summary for the data comes up fine, it's just the model that isn't working. However if I run using: *model<-gam(v1~v2, data=bats, family=negbin) * it tends to work. Any help is seriously appreciated as I have a deadline and have been trying this for days, Thanks! -- View this message in context: http://r.789695.n4.nabble.com/mgcv-package-problems-with-NAs-in-gam-tp4641253.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.