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2011 Mar 18
0
predict.nlme
Hi folks, I am having trouble to plot a mixed model analysis of covariance (ANCOVA). To do so I use the function predict in nlme but the line that is being drawn is totally out of control!!! here is my script (where MASS_S is dry mass and MASS_F is fresh mass): MEN<-read.table("Mentha_lme2.txt", h=T) attach(MEN) lme1<-lme(log(MASS_S)~log(MASS_F)*TREAT, random=~1|INDIV) summary(lme1) anova.lme(lme1) plot(log(MASS_F), log(MASS_S), type="n") points((log(MASS_F)[TREAT=="A"]), (log(MASS_S)[TREAT=="A&quo...