search for: co2_t1_t15

Displaying 1 result from an estimated 1 matches for "co2_t1_t15".

2010 Jan 14
2
paired repeated measurements
...asured co2 on 6 paired sites (one grubbed and one non-grubbed fence per site -> grubbing = treatment). These measurements I repeated 15 times over 2 years. So, now my problem is how to analyze these data. I tried the following model: mod1_CO2<-lme(co2~treatment+time,random=~1|site,data=CO2_t1_t15) I think with the random effect I included the paired sample design of my study, but obviously the model does not check for the "repeated measurements" structure of my data. Or in other words, the model assumpt that different sampling dates are independent of each other, but they...