finney71 {drc}R Documentation

Example from Finney (1971)

Description

For each of six concentration of an insecticid the number of insects affected (out of the number of insects) was recorded.

Usage

data(finney71)

Format

A data frame with 6 observations on the following 3 variables.

dose
a numeric vector
total
a numeric vector
affected
a numeric vector

Source

Finney, D. J. (1971) Probit Analysis, Cambridge: Cambridge University Press.

Examples


## Fitting a logistic regression model
model1 <- multdrc(affected/total~dose, weights=total, data=finney71,
fct=l2())
summary(model1)
plot(model1)

rm(model1)

[Package drc version 0.9-0 Index]