R: National Longitudinal Survey of Youth Extract

nlsyV {mi} | R Documentation

## National Longitudinal Survey of Youth Extract

### Description

This dataset pertains to children and their families in the United States and is intended to illustrate missing data issues. Note that although the original data are longitudinal, this extract is not.

### Usage

    data(nlsyV)

### Format

A data frame with 400 randomly subsampled observations on the following 7 variables.

`ppvtr.36`

  a numeric vector with data on the Peabody Picture Vocabulary Test (Revised) administered at 36 months

`first`

  indicator for whether child was first-born

`b.marr`

  indicator for whether mother was married when child was born

`income`

  a numeric vector with data on family income in year after the child was born

`momage`

  a numeric vector with data on the age of the mother when the child was born

`momed`

  educational status of mother when child was born (1 = less than high school, 2 = high school graduate, 3 = some college, 4 = college graduate)

`momrace`

  race of mother (1 = black, 2 = Hispanic, 3 = white)

Note that momed would typically be an ordered `factor` while momrace would typically be an unorderd `factor` but both are `numeric` in this `data.frame` in order to illustrate the mechanism to `change` the type of a `missing_variable`

### Source

National Longitudinal Survey of Youth, 1997, http://www.bls.gov/nls/nlsy97.htm

### Examples

    data(nlsyV)
    summary(nlsyV)

[Package mi version 1.0 Index]