search for: ekology

...; half >> the expression or produces an error message. >> >> All the best and sorry for a trivial quastion >> /CG >> >> >> -- >> CG Pettersson, MSci, PhD Stud. >> Swedish University of Agricultural Sciences (SLU) >> Dep. of Crop Production Ekology. Box 7043. >> SE-750 07 Uppsala, Sweden >> cg.pettersson at vpe.slu.se >> >> ______________________________________________ >> R-help at stat.math.ethz.ch mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >&...

Hi all! My question is why, and what I can do about that I sometimes, but not always, get warning-messages like nlminb returned message singular convergence (7) in: LMEopt(x = mer, value = cv) or IRLS iterations for PQL did not converge when trying to fit a model looking like this: lmer<-(cbind(Diseased,Healthy)~Fungus+(1|Family)+(1|Fungus:Family), family="binomial") to four

...t if I use: m2 <- lm(Dependent ~ Independent + I(Independent^2)) abline(m2) produces a straight line, only from the first order term. Why, and what should I do about it? Cheers /CG -- CG Pettersson, MSci, PhD Stud. Swedish University of Agricultural Sciences (SLU) Dep. of Crop Production Ekology. Box 7043. SE-750 07 Uppsala, Sweden cg.pettersson at evp.slu.se

...nlme. What??s going on? It??s no big crisis as I have the nlme version from the R installation file, but I try to keep my installation as updated as possible, so it??s irritating. :) /CG -- CG Pettersson, MSci, PhD Stud. Swedish University of Agricultural Sciences (SLU) Dep. of Crop Production Ekology. Box 7043. SE-750 07 Uppsala, Sweden cg.pettersson at vpe.slu.se

...? Cheers /CG PS. I sent basically this question, but in a more special case and with another header, to the list two days ago. Nobody was interested, hopefully this is more tasty ;-) DS. -- CG Pettersson, MSci, PhD Stud. Swedish University of Agricultural Sciences (SLU) Dep. of Crop Production Ekology. Box 7043. SE-750 07 Uppsala, Sweden cg.pettersson at evp.slu.se