transf {AgroR} | R Documentation |
Utils: Data transformation (Box-Cox, 1964)
Description
Estimates the lambda value for data transformation
Usage
transf(response, f1, f2 = NA, f3 = NA, block = NA, line = NA, column = NA)
Arguments
response |
Numerical vector containing the response of the experiment. |
f1 |
Numeric or complex vector with factor 1 levels |
f2 |
Numeric or complex vector with factor 2 levels |
f3 |
Numeric or complex vector with factor 3 levels |
block |
Numerical or complex vector with blocks |
line |
Numerical or complex vector with lines |
column |
Numerical or complex vector with columns |
Value
Returns the value of lambda and/or data transformation approximation, according to Box-Cox (1964)
Author(s)
Gabriel Danilo Shimizu, shimizu@uel.br
Leandro Simoes Azeredo Goncalves
Rodrigo Yudi Palhaci Marubayashi
References
Box, G. E., Cox, D. R. (1964). An analysis of transformations. Journal of the Royal Statistical Society: Series B (Methodological), 26(2), 211-243.
Examples
#================================================================
# Completely randomized design
#================================================================
data("pomegranate")
with(pomegranate, transf(WL,f1=trat))
#================================================================
# Randomized block design
#================================================================
data(soybean)
with(soybean, transf(prod, f1=cult, block=bloc))
#================================================================
# Completely randomized design in double factorial
#================================================================
data(cloro)
with(cloro, transf(resp, f1=f1, f2=f2))
#================================================================
# Randomized block design in double factorial
#================================================================
data(cloro)
with(cloro, transf(resp, f1=f1, f2=f2, block=bloco))
[Package AgroR version 1.3.6 Index]