cwhmisc (version 6.0)

T3plot: T3plot

Description

T3 plot for a graphical check on normality together with 95%- and 99%-acceptance regions. If the black line does not cross either the 5% nor the 1% line, the input data are normal with less than 1% error.

Usage

T3plot(x,lab=paste("T3 plot of ",deparse(substitute(x))), legend.pos="bottom", cex=0.6, ...)

Arguments

x

Data vector.

lab

String for heading of plot.

legend.pos, cex, ...

see legend.

Value

Is called for its side effect to produce a T3 plot.

References

Ghosh, S. (1996) A new graphical tool to detect non-normality. Journal of the Royal Statistical Society B , 58, 691-702.

Examples

  par(mfrow=c(2,2))
  T3plot(rnorm(100))
  T3plot(rnorm(10000))
  T3plot(rnorm(1000)+runif(1000)*0.1,"Example 3")
  T3plot(rnorm(1000)+runif(1000)*10,"Example 4")