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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