Yorkshires.litters: The data are of the number of male piglets born in litters of...

In BinaryEPPM: Mean and Scale-Factor Modeling of Under- And Over-Dispersed Binary Data

The data are of the number of male piglets born in litters of varying sizes for the Yorkshire breed of pigs.

Description

The data are arranged as a list of binomial frequency distributions where the listing is by litter size which is included both as a variate (vsize) and as a factor (fsize)

Usage

data("Yorkshires.litters")

Format

The format is: List of 3 $ fsize : Factor w/ 9 levels " size 5"," size 6",..: 1 2 3 4 5 6 7 8 9 $ vsize : int [1:9] 5 6 7 8 9 10 11 12 13 $ number.success:List of 9 ..$ : num [1:6] 3 22 30 37 13 5 ..$ : num [1:7] 7 18 44 62 27 17 4 ..$ : num [1:8] 2 14 25 63 69 41 12 5 ..$ : num [1:9] 2 15 32 70 127 90 45 18 1 ..$ : num [1:10] 0 8 33 63 106 115 62 30 11 1 ..$ : num [1:11] 0 3 20 49 79 119 91 59 23 4 ... ..$ : num [1:12] 0 0 7 20 60 94 100 47 31 9 ... ..$ : num [1:13] 0 1 6 16 29 52 66 43 34 22 ... ..$ : num [1:14] 0 2 2 2 14 19 44 45 22 13 ...

Source

Brooks, R.J., James, W.H., Gray, E. (1993). Modelling Sub-Binomial Variation in the Frequency of Sex Combinations in Litters of Pigs. Biometrics 47, 403-417.

Examples

data("Yorkshires.litters")

BinaryEPPM documentation built on June 22, 2024, 10:30 a.m.