design.graeco {agricolae} R Documentation

## Graeco - latin square design

### Description

A graeco - latin square is a KxK pattern that permits the study of k treatments simultaneously with three different blocking variables, each at k levels.

The function is only for squares of the odd numbers and even numbers (4, 8, 10 and 12)

### Usage

design.graeco(trt1, trt2, serie = 2, seed = 0, kinds = "Super-Duper",randomization=TRUE)

### Arguments

 trt1 Treatments trt2 Treatments serie number plot, 1: 11,12; 2: 101,102; 3: 1001,1002 seed seed kinds method for to randomize randomization TRUE or FALSE - randomize

### Details

kinds <- c("Wichmann-Hill", "Marsaglia-Multicarry", "Super-Duper", "Mersenne-Twister", "Knuth-TAOCP", "user-supplied", "Knuth-TAOCP-2002", "default" )

### Value

 parameters Design parameters book Fieldbook

### Author(s)

Felipe de Mendiburu

### References

1. Statistics for Experimenters Design, Innovation, and Discovery Second Edition. George E. P. Box. Wiley-Interscience. 2005.

2. Experimental design. Cochran and Cox. Second edition. Wiley Classics Library Edition published 1992.

### Examples

library(agricolae)
T1<-c("a","b","c","d")
T2<-c("v","w","x","y")
outdesign <- design.graeco(T1,T2,serie=1)
graeco<-outdesign$book plots <-as.numeric(graeco[,1]) print(outdesign$sketch)
print(matrix(plots,byrow=TRUE,ncol=4))
# 10 x 10
T1 <- letters[1:10]
T2 <- 1:10
outdesign <-  design.graeco(T1,T2,serie=2)
print(outdesign\$sketch)

[Package agricolae version 1.3-7 Index]