VGAM (version 1.1-6)

cfibrosis: Cystic Fibrosis Data

Description

This data frame concerns families data and cystic fibrosis.

Usage

data(cfibrosis)

Format

A data frame with 24 rows on the following 4 variables.

siblings, affected, ascertained, families

Over ascertained families, the \(k\)th ascertained family has \(s_k\) siblings of whom \(r_k\) are affected and \(a_k\) are ascertained.

Details

The data set allows a classical segregation analysis to be peformed. In particular, to test Mendelian segregation ratios in nuclear family data. The likelihood has similarities with seq2binomial.

Examples

# NOT RUN {
cfibrosis
summary(cfibrosis)
# }