twindata

<p>Simulated data</p><table class="table">
<tr><td>id</td><td>numeric</td><td>Twin-pair id</td></tr>
<tr><td>zyg</td><td>character</td><td>Zygosity (MZ or DZ)</td></tr>
<tr><td>twinnum</td><td>numeric</td><td>Twin number (1 or 2)</td></tr>
<tr><td>agemena</td><td>numeric</td><td>Age at menarche (or censoring)</td></tr>
<tr><td>status</td><td>logical</td><td>Censoring status (observed:=T,censored:=F)</td></tr>
<tr><td>bw</td><td>numeric</td><td>Birth weight</td></tr>
<tr><td>msmoke</td><td>numeric</td><td>Did mother smoke? (yes:=1,no:=0)</td></tr>
</table><p></p><p></p>

datasets

A general implementation of Structural Equation Models
with latent variables (MLE, 2SLS, and composite likelihood
estimators) with both continuous, censored, and ordinal
outcomes (Holst and Budtz-Joergensen (2013) <doi:10.1007/s00180-012-0344-y>).
Mixture latent variable models and non-linear latent variable models
(Holst and Budtz-Joergensen (2020) <doi:10.1093/biostatistics/kxy082>).
The package also provides methods for graph exploration (d-separation,
back-door criterion), simulation of general non-linear latent variable
models, and estimation of influence functions for a broad range of
statistical models.

Klaus Holst

lava

Latent Variable Models

Klaus K. Holst

Brice Ozenne

Thomas Gerds

twindata function

Format

<p>Simulated data</p><table class='table'>
<tr><td>id</td><td>numeric</td><td>Twin-pair id</td></tr>
<tr><td>zyg</td><td>character</td><td>Zygosity (MZ or DZ)</td></tr>
<tr><td>twinnum</td><td>numeric</td><td>Twin number (1 or 2)</td></tr>
<tr><td>agemena</td><td>numeric</td><td>Age at menarche (or censoring)</td></tr>
<tr><td>status</td><td>logical</td><td>Censoring status (observed:=T,censored:=F)</td></tr>
<tr><td>bw</td><td>numeric</td><td>Birth weight</td></tr>
<tr><td>msmoke</td><td>numeric</td><td>Did mother smoke? (yes:=1,no:=0)</td></tr>
</table>



Twin menarche data — twindata

Twin menarche data

twindata: Twin menarche data

Description

Arguments

Format

id	numeric	Twin-pair id
zyg	character	Zygosity (MZ or DZ)
twinnum	numeric	Twin number (1 or 2)
agemena	numeric	Age at menarche (or censoring)
status	logical	Censoring status (observed:=T,censored:=F)
bw	numeric	Birth weight
msmoke	numeric	Did mother smoke? (yes:=1,no:=0)