Description Format Details Source Examples
The Ovary
data frame has 308 rows and 3 columns.
This data frame contains the following columns:
an ordered factor indicating the mare on which the measurement is made.
time in the estrus cycle. The data were recorded daily from 3 days before ovulation until 3 days after the next ovulation. The measurement times for each mare are scaled so that the ovulations for each mare occur at times 0 and 1.
the number of ovarian follicles greater than 10 mm in diameter.
Pierson and Ginther (1987) report on a study of the number of large ovarian follicles detected in different mares at several times in their estrus cycles.
Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York. (Appendix A.18)
Pierson, R. A. and Ginther, O. J. (1987), Follicular population dynamics during the estrus cycle of the mare, Animal Reproduction Science, 14, 219-231.
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Loading required package: lme4
Loading required package: Matrix
Attaching package: 'MEMSS'
The following objects are masked from 'package:datasets':
CO2, Orange, Theoph
'data.frame': 308 obs. of 3 variables:
$ Mare : Factor w/ 11 levels "1","10","11",..: 1 1 1 1 1 1 1 1 1 1 ...
$ Time : num -0.1364 -0.0909 -0.0455 0 0.0455 ...
$ follicles: num 20 15 19 16 13 10 12 14 13 20 ...
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