ProbitWorkingP: Calculate working probit

In ecotoxicology: Methods for Ecotoxicology

Description

Returns the working probit

Usage

ProbitWorkingP(Y, p)

Arguments

Y	numeric, expected probit
p	numeric, kill percentage

Value

the working probit

Author(s)

Jose Gama

References

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

Examples

# Example from page 50 of Finney 1964:
# kill p = 72.3%, expected probit Y = 6.2
Y <- 6.2
p <- 72.3/100
# working probit = 5.366
ProbitWorkingP(Y,p)

Example output

[1] 5.366107

ecotoxicology documentation built on May 2, 2019, 6:10 p.m.