[R] predict.gls choking on levels of factor

I've got a gls formula that's a mix of continuous and ordered variables. I wanted to use gls because I wanted to use the varIdent structure. Anyway, attempts to use predict.gls choke with the error that the levels I use are not allowed for one of them -- the first one alphabetically, so I'd

Re: [R] predict.gls choking on levels of factor

Mitchell Maltenfort mmalten at gmail.com writes: I've got a gls formula that's a mix of continuous and ordered variables. I wanted to use gls because I wanted to use the varIdent structure. Anyway, attempts to use predict.gls choke with the error that the levels I use are not allowed