lmfmResQQPlot {robust}R Documentation

Residual QQ-Plots with Confidence Envelope

Description

Produces side-by-side residual qq-plots from an lmfm object. A simulated confidence envelope is provided for each plot.

Usage

lmfmResQQPlot(x, type = "response", envelope = TRUE, half.normal = FALSE, n.samples = 100, level = 0.95, id.n = 3, robustQQline = TRUE, main, xlab, ylab, ...)

Arguments

x an lmfm object.
type a character string specifying the type of residuals used in the plot. This argument is passed to the generic residuals function when extracting the residuals from x.
envelope a logical value. If TRUE a level confidence envelope is simulated for each qq-plot.
half.normal a logical value. If TRUE the plot is drawn using the absolute values of the residuals.
n.samples a positive integer value giving the number of samples to compute in the simulation of the confidence envelope.
level a numeric value between 0 and 1 specifying the confidence level for the envelope.
id.n a non-negative integer value specifying the number of extreme points to identify.
robustQQline a logical value. If TRUE then a qq-line computed using lmRob is included in the plot.
main a character string specifying the plot title.
xlab a character string specifying the x-axis label.
ylab a character string specifying the y-axis label.
... additional arguments are passed to the low-level plotting functions.

Value

x is invisibly returned.


[Package robust version 0.3-4 Index]