twindata


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


datasets

Estimation and simulation of latent variable models.

Klaus K Holst

lava

twindata: Twin menarche data

Description

Arguments

Format

Source

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)	id