grass: Data for Friedman test
In agricolae: Statistical Procedures for Agricultural Research
grass R Documentation
Data for Friedman test
Description
Twelve homeowners are selected randomly to participate in an experiment with
a plant nursery. Each homeowner is asked to select four fairly identical
areas in his yard and to plant four different types of grasses, one in each area.
Usage
data(grass)
Format
A data frame with 48 observations on the following 3 variables.
judgea numeric vector
trta factor with levels t1 t2 t3 t4
evaluationa numeric vector
Details
Each of the 12 blocks consists of four fairly identical plots of land,
each receiving care of approximately the same degree of skill because the
four plots are presumably cared for by the same homeowern.
Source
Book: Practical Nonparametrics Statistics, pag 372.
References
Practical Nonparametrics Statistics. W.J. Conover, 1999
Examples
data(grass)
str(grass)
agricolae documentation built on Oct. 23, 2023, 1:06 a.m.
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| grass | R Documentation |
Data for Friedman test
Description
Twelve homeowners are selected randomly to participate in an experiment with a plant nursery. Each homeowner is asked to select four fairly identical areas in his yard and to plant four different types of grasses, one in each area.
Usage
data(grass)Format
A data frame with 48 observations on the following 3 variables.
judgea numeric vector
trta factor with levels
t1t2t3t4evaluationa numeric vector
Details
Each of the 12 blocks consists of four fairly identical plots of land, each receiving care of approximately the same degree of skill because the four plots are presumably cared for by the same homeowern.
Source
Book: Practical Nonparametrics Statistics, pag 372.
References
Practical Nonparametrics Statistics. W.J. Conover, 1999
Examples
data(grass)
str(grass)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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