Hiroshima.grouped {BinaryEPPM}R Documentation

Data of chromosome aberrations in survivors of Hiroshima grouped into dose ranges and represented as frequency distributions.

Description

The data is of chromosome aberrations amongst survivors of the atomic bombs exploded over Japan. This data set is grouped into four frequency distributions. The data is from Prentice (1986).

Usage

data("Hiroshima.grouped")

Format

The format is: List of 5 $ fdose : Factor w/ 7 levels "0","1-99","100-199",..: 1 2 3 4 5 6 7 $ vdose : num [1:7] 0 38 144 244 347 ... $ gz : num [1:7] -0.7829 -0.5704 0.0219 0.5823 1.1573 ... $ gzz : num [1:7] 0.61293 0.32532 0.00048 0.3391 1.33927 ... $ number.aberrations:List of 7 ..$ : num [1:101] 139 66 35 17 3 2 1 0 0 0 ... ..$ : num [1:101] 20 23 6 7 3 2 5 2 0 1 ... ..$ : num [1:101] 23 12 20 23 6 12 12 12 5 2 ... ..$ : num [1:101] 2 2 5 5 3 14 3 2 4 3 ... ..$ : num [1:101] 1 1 1 1 3 3 3 3 3 3 ... ..$ : num [1:101] 0 0 0 1 1 3 4 1 0 2 ... ..$ : num [1:101] 3 1 2 2 2 0 1 0 1 0 ...

Details

The grouped doses of Prentice (1986) have been standardized to gz and gzz with mean of 0, standard deviation of 1 form. This was done to match the doses used in the related individual survivor data form of the data set Hiroshima.case.Rd.

Source

Prentice RL (1986). "Binary Regression Using an Extended Beta-binomial Distribution, with Discussion of Correlation Induced by Covariate Measurement Errors." Journal of the American Statistical Association, 81, 321-327. doi: 10.1080/01621459.1986.10478275

Examples

data("Hiroshima.grouped")

[Package BinaryEPPM version 2.3 Index]