search for: stereotypy

...fm2) Error in anova.lme(fm1, fm2) : Objects must inherit from classes "gls", "gnls" "lm","lmList", "lme","nlme","nlsList", or "nls" > The two equations I estimated are these: > fm1 <- glmmPQL(choice ~ day + stereotypy, + random = ~ 1 | bear, data = learning, family = binomial) > fm2 <- glmmPQL(choice ~ day + envir + stereotypy, + random = ~ 1 | bear, data = learning, family = binomial) Individually, I get results from anova(): > anova(fm1) numDF denDF F-v...

..., fm2) Error in anova.lme(fm1, fm2) : Objects must inherit from classes "gls", "gnls" "lm","lmList", "lme","nlme","nlsList", or "nls" > The two equations I estimated are these: > fm1 <- glmmPQL(choice ~ day + stereotypy, + random = ~ 1 | bear, data = learning, family = binomial) > fm2 <- glmmPQL(choice ~ day + envir + stereotypy, + random = ~ 1 | bear, data = learning, family = binomial) Individually, I get results from anova(): > anova(fm1) numDF denDF F-valu...

...n error message when appplying anova() to two equations estimated using glmmPQL. I did look through the archives but didn't finding anything relevant to my problem. The R-code and results follow. Hope someone can help. ANDREW ____________________________ > fm1 <- glmmPQL(choice ~ day + stereotypy, + random = ~ 1 | bear, data = learning, family = binomial) iteration 1 iteration 2 iteration 3 iteration 4 > fm2 <- glmmPQL(choice ~ day + envir + stereotypy, + random = ~ 1 | bear, data = learning, family = binomial) iteration 1 iteration 2 iteration 3 iteratio...

Hello: I am really stuck on this problem. Why do I get an error message with anova() when I compare these two equations? Hope someone can help. ANDREW ____________________________ > fm1 <- glmmPQL(choice ~ day + stereotypy, + random = ~ 1 | bear, data = learning, family = binomial) > fm2 <- glmmPQL(choice ~ day + envir + stereotypy, + random = ~ 1 | bear, data = learning, family = binomial) > anova(fm1, fm2) Error in anova.lme(fm1, fm2) : Objects must inherit from classes &qu...