search for: a_datafram

...with R part 1 ? Walter Zuccchini and Oleg Nenadic) for reference and if the answer is there (which it probably is) I can?t understand it (I have a very slow dial up connection so even searching nabble frequently crashes)! An example of the model is: Scale the annual cycle to be length 1.0:- with(a_dataframe,length(mean_ind)) [1] 15 index<-1:15 15/4 [1] 3.75 time<-index/3.75 Model (index used as explanatory variable for trend, also allows different intercepts for years as a random effect ? I hope):- mtrend<-lmer(a_dataframe$mean_ind~index+sin(time*2*pi)+cos(time*2*pi)+(1|factor(a_dataframe$...