Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!
Get Started for Free

searchdrc

Searching through a range of initial parameter values to obtain convergence


Description

'searchdrc' provides a facility for searching through a range of parameter values (one-dimensional) in order to obtain convergence of the estimation procedure.

Usage

searchdrc(object, which, range, len = 50)

Arguments

object

an object of class 'drc'. The object can be from a model that could not fitted.

which

a character string containing the parameter name

range

a numeric vector of length 2 specifying the interval endpoints for the range.

len

numeric. The number of points in the interval.

Details

The function goes through the range with increments such that in total at most len sets of parameter values are used as initial values for the estimation procedure. You would need to identify the parameter which is most likely to cause problems for the estimation procedure.

Value

An object of class 'drc'.

Author(s)

Christian Ritz

Examples

## No example yet

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

We don't support your browser anymore

Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.