R: Dose response data

philion {ISwR} | R Documentation

## Dose response data

### Description

Four small experiments with the purpose of estimating the EC50 of a biological dose-response relation.

### Usage

    philion

### Format

A data frame with 30 observations on the following 3 variables:

`experiment`

  a numeric vector; codes 1 through 4 denote the experiment number.

`dose`

  a numeric vector, the dose.

`response`

  a numeric vector, the response (counts).

### Details

These data were discussed on the R mailing lists, initially suggesting a log-linear Poisson regression, but actually a relation like y=ymax/(1+(x/beta)^alpha) is more suitable.

### Source

Original data from Vincent Philion, IRDA, Qu\'ebec.

### References

http://tolstoy.newcastle.edu.au/R/help/03b/1121.html

[Package ISwR version 2.0-7 Index]