rats

<p>Rat treatment data from Mantel et al.
  Three rats were chosen from each of 100 litters, one of which was
  treated with a drug, and then all followed for tumor incidence.</p>

datasets

survival

Contains the core survival analysis routines, including
definition of Surv objects,
Kaplan-Meier and Aalen-Johansen (multi-state) curves, Cox models,
and parametric accelerated failure time models.

Terry Therneau

Survival Analysis

Thomas Lumley

Atkinson Elizabeth

Crowson Cynthia

rats function

<p></p><table class="table">
<tr><td>litter:</td><td>litter number from 1 to 100</td></tr>
<tr><td>rx:</td><td>treatment,(1=drug, 0=control)</td></tr>
<tr><td>time:</td><td>time to tumor or last follow-up</td></tr>
<tr><td>status:</td><td>event status, 1=tumor and 0=censored</td></tr>
<tr><td>sex:</td><td>male or female</td></tr>
</table><p></p><p></p>

Format

Rat treatment data from Mantel et al — rats

<p></p><table class='table'>
<tr><td>litter:</td><td>litter number from 1 to 100</td></tr>
<tr><td>rx:</td><td>treatment,(1=drug, 0=control)</td></tr>
<tr><td>time:</td><td>time to tumor or last follow-up</td></tr>
<tr><td>status:</td><td>event status, 1=tumor and 0=censored</td></tr>
<tr><td>sex:</td><td>male or female</td></tr>
</table>



rats: Rat treatment data from Mantel et al

Description

Usage

Arguments

Format

References

litter:	litter number from 1 to 100
rx:	treatment,(1=drug, 0=control)
time:	time to tumor or last follow-up
status:	event status, 1=tumor and 0=censored
sex:	male or female