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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 |
| Reference manual: | UdderQuarterInfectionData.pdf |
| Package source: | UdderQuarterInfectionData_1.0.0.tar.gz |
| Windows binaries: | r-devel: UdderQuarterInfectionData_1.0.0.zip, r-release: UdderQuarterInfectionData_1.0.0.zip, r-oldrel: UdderQuarterInfectionData_1.0.0.zip |
| macOS binaries: | r-release (arm64): UdderQuarterInfectionData_1.0.0.tgz, r-oldrel (arm64): UdderQuarterInfectionData_1.0.0.tgz, r-release (x86_64): UdderQuarterInfectionData_1.0.0.tgz, r-oldrel (x86_64): UdderQuarterInfectionData_1.0.0.tgz |
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