ld50.logitfit {bda} | R Documentation |
Calibrate binomial assays, generalizing the calculation of LD50 based on a logistic regression model.
ld50.logitfit(rate, dose, p = 0.5)
rate |
A vector of percentages of successes among all trials. |
dose |
A vector of dosages. |
p |
Probabilities at which to predict the dose needed. |
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Springer.
ldose <- rep(0:5, 2) rate <- c(1, 4, 9, 13, 18, 20, 0, 2, 6, 10, 12, 16)/20 ld50.logitfit(rate,ldose,p = 0.5)