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.

### See Also

`design.ab`, `design.alpha`,`design.bib`, `design.crd` , `design.cyclic` , `design.dau` , `design.split`, `design.lattice`, `design.lsd`, `design.rcbd`, `design.strip`

### 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 1.2-9 Index]