UdderQuarterInfectionData: Udder Quarter Infection Data
The udder quarter infection data set contains infection times of individual cow udder quarters with Corynebacterium bovis (Laevens et al. 1997 <doi:10.3168/jds.S0022-0302(97)76295-7>). Obviously, the four udder quarters are clustered within a cow, and udder quarters are sampled only approximately monthly, generating interval-censored data. The data set contains both covariates that change within a cow (e.g., front and rear udder quarters) and covariates that change between cows (e.g., parity [the number of previous calvings]). The correlation between udder infection times within a cow also is of interest, because this is a measure of the infectivity of the agent causing the disease. Various models have been applied to address the problem of interdependence for right-censored event times. These models, as applied to this data set, can be found back in the publications found in the reference list.
| Version: |
1.0.0 |
| Imports: |
stats, utils |
| Published: |
2017-09-06 |
| Author: |
Hans Laevens, Luc Duchateau, Klara Goethals, Ewoud De Troyer and Paul Janssen |
| Maintainer: |
Luc Duchateau <Luc.Duchateau at ugent.be> |
| License: |
GPL-3 |
| NeedsCompilation: |
no |
| CRAN checks: |
UdderQuarterInfectionData results |
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