rpanel (version 1.1-4)

luthor: Repeated measurements on leutinizing hormone in cows

Description

These data, reported by Raz(1989, Biometrics 54, 851-71) refer to an experiment which compared the concentrations of leutinizing hormone (LH) in 16 suckled and 16 nonsuckled cows. Measurements were made daily from day 1 through to day 4 postpartum, and twice daily from day 5 through to day 10 postpartum. The cows were ovariectomised on day 5 postpartum.

The first column of the dataset defines the group (1 - non-suckled, 2 - suckled) while the remaining columns give the LH values at the successive recording times.

The data are used in the rp.rmplot example script.

References

rpanel: Simple interactive controls for R functions using the tcltk package. Journal of Statistical Software, 17, issue 9.

Examples

# NOT RUN {
   LH <- luthor[,2:16]
   gp     <- factor(luthor[,1])
   times  <- c(1:5,(5+(1:10)/2))
   rp.rmplot(log(LH), fac = gp, timept = times)
   
# }