grover.rcb.subsample.Rd
An experiment on rice with 9 fertilizer treatments in 4 blocks, 4 hills per plot.
data("grover.rcb.subsample")
A data frame with 144 observations on the following 4 variables.
tiller
number of tillers
trt
treatment factor
block
block factor
unit
subsample unit
An experiment on rice with 9 fertilizer treatments in 4 blocks, 4 hills per plot. The response variable is tiller count (per hill). The hills are sampling units.
Grover, Deepak & Lajpat Rai (2010). Experimental Designing And Data Analysis In Agriculture And Biology. Agrotech Publishing Academy. Page 85. https://archive.org/details/expldesnanddatanalinagblg00023
None.
# \dontrun{
data(grover.rcb.subsample)
# Fixed-effects ANOVA. Matches Grover page 86.
anova(aov(tiller ~ block + trt + block:trt, data=grover.rcb.subsample))
#> Analysis of Variance Table
#>
#> Response: tiller
#> Df Sum Sq Mean Sq F value Pr(>F)
#> block 3 930 310.01 3.6918 0.01415 *
#> trt 8 11816 1477.00 17.5891 < 2e-16 ***
#> block:trt 24 4721 196.71 2.3425 0.00158 **
#> Residuals 108 9069 83.97
#> ---
#> Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## Response: tiller
## Df Sum Sq Mean Sq F value Pr(>F)
## block 3 930 310.01 3.6918 0.01415 *
## trt 8 11816 1477.00 17.5891 < 2e-16 ***
## block:trt 24 4721 196.71 2.3425 0.00158 **
## Residuals 108 9069 83.97
# }