get_drm: Function to generate a dose-response model from a data frame.

In ezec: Easy Interface to Effective Concentration Calculations

Description

Function to generate a dose-response model from a data frame.

Usage

get_drm(x, form = NULL, model = c("LL.3", "LL.4", "W1.4", "W2.4"),
  idcol = "ID")

Arguments

x	a data frame that has at least the columns listed in the form argument (e.g. "response" and "dose", see examples).
form	a formula specifying the column names for the response and dose. Defaults to NULL.
model	one of 4 options: LL.3 = Log Logistic 3 parameter with a lower limit of 0. LL.4 = Log Logistic 4 parameter with lower limit estimated. W1.4 = Weibul 4 parameter type 1. W2.4 = Weibul 4 parameter type 2.
idcol	the name of the column that identifies the samples (case sensitive).

Details

A wrapper function for drm, this will attempt to catch errors generated due to non-finite responses. When these are encounterd, a message that the model was not evaluated will be printed to the screen and NA will be returned.

Author(s)

Zhian N. Kamvar

ezec documentation built on May 2, 2019, 8:08 a.m.