drc: PR – R documentation

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Documentation

drc

PR

Expected or predicted response

Description

The function returns the expected or predicted response for specified dose values.

Usage

PR(object, xVec, ...)

Arguments

`object`	object of class `drc` obtaining fitting a dose-response model.
`xVec`	numeric vector of dose values.
`...`	additional arguments to be supplied to `predict.drc`. No effect at the moment.

Details

This function is a convenience function for easy access to predicted values.

Value

A numeric vector of predicted values or possibly a matrix of predicted values and corresponding standard errors.

Author(s)

Christian Ritz after a suggestion from Andrew Kniss.

Examples

ryegrass.m1 <- drm(ryegrass, fct = LL.4())
PR(ryegrass.m1, c(5, 10))

ryegrass.m2 <- drm(ryegrass, fct = LL2.4())
PR(ryegrass.m2, c(5, 10))

spinach.m1 <- drm(SLOPE~DOSE, CURVE, data=spinach, fct = LL.4())
PR(spinach.m1, c(5, 10))

drc

Analysis of Dose-Response Curves

v3.0-1

GPL-2 | file LICENCE

Authors

Christian Ritz <ritz@bioassay.dk>, Jens C. Strebig <streibig@bioassay.dk>

Initial release

2016-08-25

PR