order.group: Ordering the treatments according to the multiple comparison

In agricolae: Statistical Procedures for Agricultural Research

Ordering the treatments according to the multiple comparison

Description

This function allows us to compare the treatments averages or the adding of their ranges with the minimal significant difference which can vary from one comparison to another one.

Usage

order.group(trt, means, N, MSerror, Tprob, std.err, parameter=1, snk=0, 
DFerror=NULL,alpha=NULL,sdtdif=NULL,vartau=NULL,console)

Arguments

trt	Treatments
means	Means of treatment
N	Replications
MSerror	Mean square error
Tprob	minimum value for the comparison
std.err	standard error
parameter	Constante 1 (Sd), 0.5 (Sx)
snk	Constante = 1 (Student Newman Keuls)
DFerror	Degrees of freedom of the experimental error
alpha	Level of risk for the test
sdtdif	standard deviation of difference in BIB
vartau	matrix var-cov in PBIB
console	logical, print output

Details

This function was changed by orderPvalue function that use agricolae. Now the grouping in agricolae is with the probability of the treatments differences and alpha level.

Value

The output is data frame.

trt	Treatment Levels, Factor
means	height, Numeric
M	groups levels, Factor
N	replications, Numeric
std.err	Standard error, Numeric

Note

It is considered 81 labels as maximum for the formation of groups, greater number will not have label.

Author(s)

Felipe de Mendiburu

See Also

orderPvalue

Examples

library(agricolae)
treatments <- c("A","B","C","D","E","F")
means<-c(20,40,35,72,49,58)
std.err<-c(1.2, 2, 1.5, 2.4, 1, 3.1)
replications <- c(4,4,3,4,3,3)
MSerror <- 55.8
value.t <- 2.1314
groups<-order.group(treatments,means,replications,MSerror,value.t,std.err,console=FALSE)
print(groups)

agricolae documentation built on Oct. 23, 2023, 1:06 a.m.