Description Usage Format Details Source References Examples

Legacy dataset from early teaching examples. See `twinData`

for a more current file.

1 | ```
data("myTwinData")
``` |

A data frame with 3808 observations on the following variables.

`fam`

Family ID variable

`age`

Age of the twin pair. Range: 17 to 88.

`zyg`

Integer codes for zygosity and gender combinations

`part`

Cohort

`wt1`

Weight in kilograms for twin 1

`wt2`

Weight in kilograms for twin 2

`ht1`

Height in meters for twin 1

`ht2`

Height in meters for twin 2

`htwt1`

Product of ht and wt for twin 1

`htwt2`

Product of ht and wt for twin 2

`bmi1`

Body Mass Index for twin 1

`bmi2`

Body Mass Index for twin 2

Height and weight are highly correlated, and each individually highly heritable. These data present and opportunity for multivariate behavior genetics modeling.

Timothy Bates

The OpenMx User's guide can be found at http://openmx.ssri.psu.edu/documentation.

1 2 3 | ```
data(myTwinData)
plot( ht1 ~ wt1, myTwinData)
``` |

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.