Exam8.2 {eda4treeR}

Example 8.2 from Experimental Design and Analysis for Tree Improvement

Description

Exam8.2 presents the Diameter at breast height (Dbh) of 60 SeedLots under layout of row column design with 6 rows and 10 columns in 18 countries and 59 provinces of 18 selected countries.

Author(s)

1. Muhammad Yaseen ([e-mail])

2. Sami Ullah ([e-mail])

References

1. E.R. Williams, C.E. Harwood and A.C. Matheson (2023). Experimental Design and Analysis for Tree Improvement. CSIRO Publishing (https://www.publish.csiro.au/book/3145/).

See Also

DataExam8.2

Examples

library(car)
library(dae)
library(dplyr)
library(emmeans)
library(ggplot2)
library(lmerTest)
library(magrittr)
library(predictmeans)
library(supernova)

data(DataExam8.2)

# Pg.
fm8.2  <-
  lmer(
    formula = dbhmean ~ Repl + Column + Contcompf + Contcompf:Standard +
              (1|Repl:Row ) + (1|Repl:Column ) + (1|Contcompv:Clone)
  , data    = DataExam8.2
    )
## Not run: 
varcomp(fm8.2)

## End(Not run)
anova(fm8.2)
Anova(fm8.2, type = "II", test.statistic = "Chisq")

predictmeans(model = fm8.2, modelterm = "Repl")
predictmeans(model = fm8.2, modelterm = "Column")
library(emmeans)
emmeans(object = fm8.2, specs = ~Contcompf|Standard)