R: Summarize long term carcinogenicity data

poly3table {MCPAN} | R Documentation

## Summarize long term carcinogenicity data

### Description

Function to summarize data of long term carcinogenicity trials in a text format. Data are assumed to consist of (1) a dichotomous variable, defining whether the tumour of interest was present in an individual animal at time of death, and (2) a numeric variable containing the time of death of an individual animal, and (3) a grouping factor.

### Usage

    poly3table(time, status, f, tumour = NULL, symbol = "*")

### Arguments

`time` | a numeric vector, containing the time of death of an individual
`status` | a logical (or dichotomous categorical) vector
`f` | a factor, specifying treatment groups
`tumour` | the value which `status` obtains if a tumour is present in an individual at time of death
`symbol` | symbol to indicate presence of tumour in the text representation

### Value

A named list, containing a character string for each group

### Author(s)

Frank Schaarschmidt

### Examples

    data(methyl)
    methyl
    poly3table(time=methyl$death, status=methyl$tumour,
     f=methyl$group, tumour = 1, symbol = "*")

[Package MCPAN version 1.1-21 Index]