search for: hyd_cycle

Displaying 1 result from an estimated 1 matches for "hyd_cycle".

2007 Nov 02
1
lme model with replicates within a random factor
...e tried an lme model with “time” and “basin” as random factors. I have put hydrological cycle as a fixed factor, since I’m interested in quantifying their effect. But I’m not sure if there are other possibilities to do this. This is my model structure: Model1<-lme(shannon<-log(chla+1)*hyd_cycle+toc*hyd_cycle, random=~time|basin) Note that I have not put “replicate” within the random structure (random=~time|basin/replicate), and this is my major concern. I’m not sure if I have to include “replicate” in the random structure, since replicates are randomly taken each time, and so are not...