Galton: Galton's Height Data.

In R4HCR: R for Health Care Research

Galton's Height Data.

Description

These data are from Galton's 1886 study of human height.

Usage

Galton

Format

A data frame with 898 observations on the following 9 variables.

family

Indicator variable for family unit (or parentages).

father

Height of the father in inches.

mother

Height of the mother in inches.

sex

Sex of the child (M = Male, F = Female).

height

Height of the child.

no.children

Number of children in family unit.

mother.adj

Mother's height multiplied by 1.08.

height.adj

Adjusted height of the children (see details).

mid.parent

The “mid-parent” height (see details).

Details

Galton's data comprised 898 adult children from 197 family units (father-and-mother couples). Mid-parent is the mean of the height of the father and of his wife's height multiplied by 1.08. Similarly, adjusted height has the same correction with female children's height also multiplied by 1.08, and male child heights are left unchanged.

Source

Francis Galton, 2017, "Galton height data", Harvard Dataverse

References

Galton, Francis. "Regression towards mediocrity in hereditary stature." The Journal of the Anthropological Institute of Great Britain and Ireland 15 (1886): 246-263.

Stephen Senn, Francis Galton and Regression to the Mean, Significance, Volume 8, Issue 3, September 2011, Pages 124–126.

Examples

data(Galton, package = "R4HCR")

# Regression to the mean
lm.mod <- lm(height.adj ~ mid.parent, data = Galton)

su <- summary(lm.mod)

coef(lm.mod)

R4HCR documentation built on Sept. 30, 2024, 9:46 a.m.