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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.

Versions across snapshots

VersionRepositoryFileSize
1.0.0 rolling linux/jammy R-4.5 UdderQuarterInfectionData_1.0.0.tar.gz 37.1 KiB
1.0.0 rolling linux/noble R-4.5 UdderQuarterInfectionData_1.0.0.tar.gz 37.0 KiB
1.0.0 rolling source/ R- UdderQuarterInfectionData_1.0.0.tar.gz 22.8 KiB
1.0.0 latest linux/jammy R-4.5 UdderQuarterInfectionData_1.0.0.tar.gz 37.1 KiB
1.0.0 latest linux/noble R-4.5 UdderQuarterInfectionData_1.0.0.tar.gz 37.0 KiB
1.0.0 latest source/ R- UdderQuarterInfectionData_1.0.0.tar.gz 22.8 KiB
1.0.0 2026-04-26 source/ R- UdderQuarterInfectionData_1.0.0.tar.gz 22.8 KiB
1.0.0 2026-04-23 source/ R- UdderQuarterInfectionData_1.0.0.tar.gz 22.8 KiB
1.0.0 2026-04-09 windows/windows R-4.5 UdderQuarterInfectionData_1.0.0.zip 41.5 KiB
1.0.0 2025-04-20 source/ R- UdderQuarterInfectionData_1.0.0.tar.gz 22.8 KiB

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