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#
# postmortem-answers.R, 20 Sep 16
#
# Data from:
# Plat_Forms 2007: The web development platform comparison - evaluation and results
#
# Example from:
# Empirical Software Engineering using R
# Derek M. Jones
source("ESEUR_config.r")
pm_ans=read.csv(paste0(ESEUR_dir, "communicating/postmortem-answers.csv.xz"), as.is=TRUE, sep="\t")
team_lang=read.csv(paste0(ESEUR_dir, "communicating/team-lang.csv.xz"), as.is=TRUE)
pm_ans$language=team_lang$language[pm_ans$team]
brew_col=rainbow_hcl(3)
boxplot(experience ~ language, data=pm_ans, col=brew_col,
ylab="Years experience")
# library("coin")
# Perl_PHP=subset(pm_ans, (language=="Perl") | (language=="PHP"))
# The default is alternative="two.sided",
# an option not currently listed in the Arguments section.
# oneway_test(experience ~ as.factor(language), data=Perl_PHP,
# distribution="exact")