dr4pl: coef.dr4pl – R documentation

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coef.dr4pl

Obtain coefficients of a 4PL model

Description

This function obtains the coefficients of a 4PL model. Estimates of the four parameters, the upper asymptote, IC50, slope and lower asymptote, are returned.

Usage

## S3 method for class 'dr4pl'
coef(object, ...)

Arguments

`object`	A 'dr4pl' object
`...`	arguments passed to coef

Value

A vector of parameters

Examples

obj.dr4pl <- dr4pl(Response ~ Dose, data = sample_data_2)  # Fit a 4PL model to data
coef(obj.dr4pl)  # Print parameter estimates

obj.dr4pl <- dr4pl(Response ~ Dose, data = sample_data_3)  # Fit a 4PL model to data
coef(obj.dr4pl)  # Print parameter estimates

dr4pl

Dose Response Data Analysis using the 4 Parameter Logistic (4pl) Model

v1.1.11

GPL (>= 2)

Authors

Justin T. Landis [aut, cre], Hyowon An [aut], Aubrey G. Bailey [aut], Dirk P. Dittmer [aut], James S. Marron [aut]

Initial release

2019-10-07