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ecotoxicology (version 1.0.1)

ProbitVarianceRate: Variance of rate of increase of probit value per unit increase in x

Description

Variance of rate of increase of probit value per unit increase in x

Usage

ProbitVarianceRate(n, w, x, xbar)

Arguments

n
numeric, number of insects
w
numeric, weighting coefficients
x
numeric, log concentration
xbar
numeric, mean dosage

Value

Variance of rate of increase of probit value per unit increase in x

References

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