boxplot.bcmmrm {bcmixed}

Box-whisker plot for a bcmmrm Object.

Description

Box-whisker plot for the transformed residuals of each treatment groups at a specified time point with error bar plot (mean +- SD) using bcmmrmObject.

Usage

## S3 method for class 'bcmmrm'
boxplot(
  x,
  timepoint = NULL,
  xlab = NULL,
  ylab = NULL,
  main = TRUE,
  sub = NULL,
  verbose = FALSE,
  ...
)

Arguments

x

an object inheriting from class "bcmmrm", representing the Box-Cox transformed MMRM analysis.

timepoint

an numeric value of a specified level of time variable. The default is NULL and the last level is specified.

xlab

a title for the x axis. The default is NULL and the name of time or group variable is used.

ylab

a title for the y axis. The default is NULL and the default title is "Transformed residuals".

main

a main title for the plot. The default is TRUE and default title is "Box-whisker plot for transformed residuals".

sub

a sub title for the plot. The default is NULL.

verbose

a logical optional value specifying to print the detailed plot information in the console. The default is FALSE.

...

some methods for this generic require additional arguments.

Value

a box-whisker plot for transformed residual.

See Also

bcmmrm, bcmmrmObject

Examples

 data(aidscd4)
 lmd.bl <- bcreg(cd4.bl ~ 1, data = aidscd4[aidscd4$weekc == 8, ])$lambda
 aidscd4$cd4.bl.tr <- (aidscd4$cd4.bl ^ lmd.bl - 1) / lmd.bl
 resar <- bcmmrm(outcome = cd4, group = treatment, data = aidscd4,
                time = weekc, id = id, covv = c("cd4.bl.tr", "sex"),
                cfactor = c(0, 1), structure = "AR(1)", glabel =
                c("Zid/Did", "Zid+Zal", "Zid+Did", "Zid+Did+Nev"))
 boxplot(resar, xlab = "Treatment", col = 1:4)