eda4treeR (version 0.3.0)

Exam2.1: Example 2.1 from Experimental Design & Analysis for Tree Improvement

Description

Exam2.1 is used to compare two seed lots by using single factor ANOVA.

References

1. Williams, E.R., Matheson, A.C. and Harwood, C.E. (2002).Experimental Design and Analysis for Tree Improvement. CSIRO Publishing.

See Also

DataExam2.1

Examples

# NOT RUN {
data(DataExam2.1)
library(tidyverse)
fmtab2.3  <-
  lm(
  formula     = dbh ~ SeedLot
, data        = DataExam2.1
# , subset
# , weights
# , na.action
, method      = "qr"
, model       = TRUE
, x           = FALSE
, y           = FALSE
, qr          = TRUE
, singular.ok = TRUE
, contrasts   = NULL
)

anova(fmtab2.3)

DataExam2.1 %>%
  dplyr::group_by(SeedLot) %>%
  dplyr::summarize(Mean = mean(dbh), SD = sd(dbh))
# }