ProbitRegression {ecotoxicology} | R Documentation |
Probit regression line
ProbitRegression(x, n, r, adjAbbot = FALSE, roundFinney = FALSE)
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 |
Probit regression line a+bx
Jose Gama
Finney D. J., 1964 Probit analysis: a statistical treatment of the sigmoid response curve. Cambridge University Press