glmtoolbox (version 0.1.12)

Cortisol: Radioimmunological Assay of Cortisol

Description

The amount of hormone contained in a preparation cannot be measured directly, so estimating an unknown dose of hormone involves a two-step process. A calibration curve must first be established, then the curve must be inverted to determine the hormone dose. The calibration curve is estimated using a radioimmunological assay.

Usage

data(Cortisol)

Format

A data frame with 64 rows and 2 variables:

lDose

a numeric vector indicating the logarithm in base 10 of the dose.

Y

a numeric vector indicating the response, in counts per minute.

References

Huet S., Bouvier A., Poursat M.-A., Jolivet E. (2004). Statistical tools for nonlinear regression : a practical guide with S-PLUS and R examples. 2nd Edition. Springer, New York.

Examples

data(Cortisol)
dev.new()
with(Cortisol, plot(lDose,Y,xlab="Log10(Dose, in ng/0.1 ml)",pch=16,col="blue",
                    ylab="Response, in counts per minute"))