predictmeans (version 1.1.1)

PMplot: Level Plot of a Matrix of p-values.

Description

Creates a plot of p-values of pairwise comparisons.

Usage

PMplot(pmatrix, level=0.05, mtitle=NULL, xylabel=NULL, margin=5, legendx=0.73, 
  newwd=FALSE)

Arguments

pmatrix

A matrix with p-values from pairwise comparisons. (This is a lower triangle matrix.)

level

The level of p-value to be highlighted. Default is 0.05.

mtitle

The main title in the graph.

xylabel

The x and y labels in the graph.

margin

A value for specifying x and y margins in the graph. The default value is 5.

legendx

A value for specifying x coordinate of legend. The default value is 0.73.

newwd

A logical variable to indicate whether to print graph in a new window. The default is FALSE.

Author

Dongwen Luo, Siva Ganesh and John Koolaard

Examples

  library(predictmeans)
  set.seed(2013)
  pvalues <- runif(28)
  pmatrix <- matrix(0,8,8)
  pmatrix[lower.tri(pmatrix)] <- pvalues
  round(pmatrix, 4)
  PMplot(pmatrix)

  Oats$nitro <- factor(Oats$nitro)
  fm <- lmer(yield ~ nitro*Variety+(1|Block/Variety), data=Oats)
  predictout <- predictmeans(fm, "nitro:Variety", atvar="Variety", adj="BH", barplot=TRUE)
  PMplot(predictout$p_valueMatrix)