myTwinData

Data set used in some of OpenMx&#39;s examples.

datasets

Facilitates treatment of statistical model specifications
as things that can be generated and manipulated programmatically.
Structural equation models may be specified with reticular action model matrices or paths,
linear structural relations matrices or paths, or
directly in matrix algebra.
Fit functions include full information maximum likelihood,
maximum likelihood, and weighted least squares.
Example models include confirmatory factor, multiple group, mixture
distribution, categorical threshold, modern test theory, differential
equations, state space, and many others.

c(Joshua N.) Pritikin

OpenMx

Extended Structural Equation Modelling

myTwinData function

A data frame with 3808 observations on the following variables.
  <dl class="dl-horizontal">
    <dt><code>fam</code></dt><dd>Family ID variable</dd>
    <dt><code>age</code></dt><dd>Age of the twin pair.  Range: 17 to 88.</dd>
    <dt><code>zyg</code></dt><dd>Integer codes for zygosity and gender combinations</dd>
    <dt><code>part</code></dt><dd></dd>
    <dt><code>wt1</code></dt><dd>Weight in kilograms for twin 1</dd>
    <dt><code>wt2</code></dt><dd>Weight in kilograms for twin 2</dd>
    <dt><code>ht1</code></dt><dd>Height in meters for twin 1</dd>
    <dt><code>ht2</code></dt><dd>Height in meters for twin 2</dd>
    <dt><code>htwt1</code></dt><dd>Product of ht and wt for twin 1</dd>
    <dt><code>htwt2</code></dt><dd>Product of ht and wt for twin 2</dd>
    <dt><code>bmi1</code></dt><dd>Body Mass Index for twin 1</dd>
    <dt><code>bmi2</code></dt><dd>Body Mass Index for twin 2</dd>
  </dl>

Format


 — myTwinData

A data frame with 3808 observations on the following variables.
  <dl class='dl-horizontal'>
    <dt><code>fam</code></dt><dd>Family ID variable</dd>
    <dt><code>age</code></dt><dd>Age of the twin pair.  Range: 17 to 88.</dd>
    <dt><code>zyg</code></dt><dd>Integer codes for zygosity and gender combinations</dd>
    <dt><code>part</code></dt><dd></dd>
    <dt><code>wt1</code></dt><dd>Weight in kilograms for twin 1</dd>
    <dt><code>wt2</code></dt><dd>Weight in kilograms for twin 2</dd>
    <dt><code>ht1</code></dt><dd>Height in meters for twin 1</dd>
    <dt><code>ht2</code></dt><dd>Height in meters for twin 2</dd>
    <dt><code>htwt1</code></dt><dd>Product of ht and wt for twin 1</dd>
    <dt><code>htwt2</code></dt><dd>Product of ht and wt for twin 2</dd>
    <dt><code>bmi1</code></dt><dd>Body Mass Index for twin 1</dd>
    <dt><code>bmi2</code></dt><dd>Body Mass Index for twin 2</dd>
  </dl>

myTwinData:

Description

Usage

Arguments

Format

Details

References

Examples