STRIPLOT function

Analysis: DBC experiments in strip-plot

Analysis of an experiment conducted in a block randomized design in a strit-plot scheme using fixed effects analysis of variance.

STRIPLOT(
  f1,
  f2,
  block,
  response,
  norm = "sw",
  alpha.f = 0.05,
  transf = 1,
  textsize = 12,
  labelsize = 4,
  constant = 0
)

Arguments

• f1: Numeric or complex vector with plot levels
• f2: Numeric or complex vector with subplot levels
• block: Numeric or complex vector with blocks
• response: Numeric vector with responses
• norm: Error normality test (default is Shapiro-Wilk)
• alpha.f: Level of significance of the F test (default is 0.05)
• transf: Applies data transformation (default is 1; for log consider 0)
• textsize: Font size (default is 12)
• labelsize: Label size (default is 4)
• constant: Add a constant for transformation (enter value)

Returns

The table of analysis of variance, the test of normality of errors (Shapiro-Wilk, Lilliefors, Anderson-Darling, Cramer-von Mises, Pearson and Shapiro-Francia), the test of homogeneity of variances (Bartlett). The function also returns a standardized residual plot.

Examples

#===================================
# Example tomate
#===================================
# Obs. Consider that the "tomato" experiment is a block randomized design in strip-plot.
library(AgroR)
data(tomate)
with(tomate, STRIPLOT(parc, subp, bloco, resp))

References

Principles and procedures of statistics a biometrical approach Steel, Torry and Dickey. Third Edition 1997

Multiple comparisons theory and methods. Departament of statistics the Ohio State University. USA, 1996. Jason C. Hsu. Chapman Hall/CRC.

Practical Nonparametrics Statistics. W.J. Conover, 1999

Ramalho M.A.P., Ferreira D.F., Oliveira A.C. 2000. Experimentacao em Genetica e Melhoramento de Plantas. Editora UFLA.

Scott R.J., Knott M. 1974. A cluster analysis method for grouping mans in the analysis of variance. Biometrics, 30, 507-512.

Author(s)

Gabriel Danilo Shimizu, shimizu@uel.br

Leandro Simoes Azeredo Goncalves

Rodrigo Yudi Palhaci Marubayashi