plot.group | R Documentation |
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.
## S3 method for class 'group'
plot(x,variation=c("range","IQR","SE","SD"), decreasing = TRUE,
horiz=FALSE,col=NULL,xlim=NULL,ylim=NULL,main=NULL,cex=NULL,hy=0,...)
x |
Object created by a test of comparison |
variation |
in lines by range, IQR, standard deviation or error |
decreasing |
Logical, decreasing order of the mean |
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() |
The output is a vector that indicates the position of the treatments on the coordinate axes.
Felipe de Mendiburu
BIB.test
, DAU.test
, duncan.test
,
durbin.test
, friedman
, HSD.test
,
kruskal
, LSD.test
, Median.test
,
PBIB.test
, REGW.test
, scheffe.test
,
SNK.test
, waerden.test
, waller.test
library(agricolae)
data(sweetpotato)
model<-aov(yield~virus,data=sweetpotato)
comparison<- LSD.test(model,"virus",alpha=0.01,group=TRUE)
#startgraph
op<-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
par(op)
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