coleman {robustbase} | R Documentation

## Coleman Data Set

### Description

Contains information on 20 Schools from the Mid-Atlantic and New England States, drawn from a population studied by Coleman et al. (1966). Mosteller and Tukey (1977) analyze this sample consisting of measurements on six different variables, one of which will be treated as a responce.

### Usage

    data(coleman)

### Format

A data frame with 20 observations on the following 6 variables.

`salaryP`

  staff salaries per pupil

`fatherWc`

  percent of white-collar fathers

`sstatus`

  socioeconomic status composite deviation: means for family size, family intactness, father's education, mother's education, and home items

`teacherSc`

  mean teacher's verbal test score

`motherLev`

  mean mother's educational level, one unit is equal to two school years

`Y`

  verbal mean test score (y, all sixth graders)

### Author(s)

Valentin Todorov

### Source

P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression and Outlier Detection Wiley, p.79, table 2.

### Examples

    data(coleman)
    pairs(coleman)
    summary( lm.coleman <-     lm(Y ~ . , data = coleman))
    summary(lts.coleman <- ltsReg(Y ~ . , data = coleman))

    coleman.x <- data.matrix(coleman[, 1:6])
    (Cc <- covMcd(coleman.x))

[Package robustbase version 0.92-8 Index]