plot.group: Plotting the multiple comparison of means
In myaseen208/agricolae: Statistical Procedures for Agricultural Research

plot.group

R Documentation

Plotting the multiple comparison of means

Description

It plots bars of the averages of treatments to compare. It uses the objects generated by a procedure of comparison like LSD, HSD, Kruskall, Waller-Duncan, Friedman or Durbin. It can also display the 'average' value over each bar in a bar chart.

Usage

## S3 method for class 'group'
plot(
  x,
  variation = c("range", "IQR", "SE", "SD"),
  horiz = FALSE,
  col = NULL,
  xlim = NULL,
  ylim = NULL,
  main = NULL,
  cex = NULL,
  hy = 0,
  ...
)

Arguments

`x`	Object created by a test of comparison
`variation`	in lines by range, IQR, standard deviation or error
`horiz`	Horizontal or vertical image
`col`	line colors
`xlim`	optional, axis x limits
`ylim`	optional, axis y limits
`main`	optional, main title
`cex`	optional, group label size
`hy`	optional, default =0, sum group label position
`...`	Parameters of the function barplot()

Details

The output is a vector that indicates the position of the treatments on the coordinate axes.

Author(s)

Felipe de Mendiburu

Examples


library(agricolae)
data(sweetpotato)
model<-aov(yield~virus,data=sweetpotato)
comparison<- LSD.test(model,"virus",alpha=0.01,group=TRUE)
#startgraph
par(cex=1.5)
plot(comparison,horiz=TRUE,xlim=c(0,50),las=1)
title(cex.main=0.8,main="Comparison between\ntreatment means",xlab="Yield",ylab="Virus")
#endgraph

myaseen208/agricolae documentation built on April 4, 2023, 5:23 a.m.