plot.smoothSurvReg {smoothSurv}

Plot Objects of Class 'smoothSurvReg'

Description

Plot the fitted error distribution.

Usage

## S3 method for class 'smoothSurvReg'
plot(x, plot = TRUE, resid = TRUE, knots = TRUE,
   compare = TRUE, components = FALSE, standard = TRUE,
   by, toler.c = 1e-5,
   xlim, ylim,
   xlab = expression(epsilon), ylab = expression(paste("f(",epsilon,")", sep = "")),
   type = "l", lty = 1, main, sub, bty = "n", ...)

Arguments

x

Object of class smoothSurvReg.

plot

If TRUE the plot is directly produced, otherwise only a data.frame with information used for later plotting is returned.

resid

If resid & plot residuals are added to the plot in the following way. Residuals based on exact observations are plotted by pch = 3 (+), residuals based on right censored observations using pch = 4 (x), residuals based on left censored observations using pch = 2 (traingle) and midpoints of residuals based on interval censored observations using pch = 5 (diamond).

knots

If knots & plot bullets indicating (transformed) knots corresponding to 'c' G-spline coefficients higher than toler.c are added to the x-axis of the plot.

compare

If compare & !components & standard & plot plots of the three parametric distributions (st. normal, st. logistic and st. minimum extreme value) are added to the plot for comparison.

components

If components & standard & plot dashed lines with weighted G-spline components are added to the plot.

standard

If standard data for plotting the fitted error distribution are created, otherwise data for plotting the distribution of \alpha + \sigma\varepsilon are created. In the case that \log(\sigma) depends on covariates and standard is FALSE, all covariates equal to zero are used to compute \log(\sigma).

by

Step for a ploting grid. If NULL it is automatically computed.

toler.c

Tolerance to indicate zero 'c' G-spline coefficients used if knots == TRUE.

xlim, ylim

Arguments passed to the plot function.

xlab, ylab

Arguments passed to the plot function.

type, lty

Arguments passed to the plot function.

main, sub

Arguments passed to the plot function.

bty

Argument passed to the plot function.

...

Arguments passed to the plot function.

Value

A dataframe with columns named x and y where x gives the grid and y the values of the density at that grid.

Author(s)

Arnošt Komárek [e-mail]

See Also

smoothSurvReg, plot