drfit (version 0.03-13)

drplot: Plot dose-response models

Description

Produce graphics of dose-response data and dose-response relationships either combined or separately, for one or more substances.

Usage

drplot(drresults, data, dtype, alpha, path, fileprefix, overlay,
    postscript, color, datacolors, fitcolors)

Arguments

drresults

A data frame as returned from drfit.

data

A data frame as returned from drdata. If data is to be plotted, the data frame has to contain at least a factor called "substance", a vector called "unit" containing the unit used for the dose,

dtype

A string describing if the raw data should be plotted ("raw"), or an error bar should be constructed from the standard deviations of the responses at each dose level ("std", default value) or from the confidence intervals ("conf"). Of course,

alpha

The confidence level, defaulting to 0.95, only used if dtype "conf" has been chosen.

path

The path where graphic files should be put if any are produced. Defaults to "./" i.e. the current working directory of R.

fileprefix

A string which will form the beginning of each filename, if graphic files are created. Defaults to "drplot".

overlay

If TRUE, all output will be put into one graph, otherwise a separate graph will be created for each substance. In the latter case, on-screen display (postscript=FALSE) only works correctly for data plots. Dose-response models will all be put i

postscript

If TRUE, (a) postscript graph(s) will be created. Otherwise, graphics will be displayed with a screen graphics device.

color

If TRUE, a sensible selection of colors will be attempted. If false, everything will be drawn in black

datacolors

This is a vector of colors, defaulting to 1:8, used for plotting the data.

fitcolors

Here you can specify a palette for the colors of the dose-response fits. The default value is "default", which produces the default palette, if the number of fits to be plotted is 8 or less. Otherwise, rainbow colors will be plotted. Unless

Value

• results
  You will get plots of data and/or the fitted dose-response curves, on the screen and/or as postscript files, depending on the parameters.

Examples

data(antifoul)
r <- drfit(antifoul)
drplot(r,antifoul)