ecotoxicology (version 1.0.1)

ProbitRegression: Probit regression line

Description

Probit regression line

Usage

ProbitRegression(x, n, r, adjAbbot = FALSE, roundFinney = FALSE)

Arguments

x

numeric, log concentration

n

numeric, number of insects

r

numeric, number of observed affected

adjAbbot

logic, use Abbot adjustment

roundFinney

logic, round as in Finney's book

Value

Probit regression line a+bx

References

Finney D. J., 1964 Probit analysis: a statistical treatment of the sigmoid response curve. Cambridge University Press