drc (version 0.8-2)

heartrate: Heart rate baroreflexes for rabbits

Description

The dataset contains measurements of mean arterial pressure (mmHG) and heart rate (b/min) for a baroreflex curve.

Usage

data(heartrate)

source

Ricketts, J. H. and Head, G. A. (1999) A five-parameter logistic equation for investigating asymmetry of curvature in baroreflex studies. Am. J. Physiol. (Regulatory Integrative Comp. Physiol. 46), 277, 441--454.

Details

The dataset is an example of an asymmetric dose-response curve, that is not easily handling using the log-logistic or Weibull models, whereas the baro5 models provides a nice fit.

Examples

## Fitting the baro5 model
model1 <- multdrc(rate~pressure, data=heartrate, fct=baro5())
plot(model1)

rm(model1)