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dsr
2013 Feb 15
1
Why no line? (ex. from Andy Filed book)
The following script is written by the author of a book on R--Andy Field:
You can also download the small datafile, hiccups.dat, from this address:
http://www.sagepub.com/dsur/study/articles.htm
The script:
hiccupsData <- read.delim("Hiccups.dat", header = TRUE)
hiccups<-stack(hiccupsData)
names(hiccups)<-c("Hiccups","Intervention")
hiccups$Intervention_Factor<-factor(hiccups$Intervention, levels =
hiccups$Intervention)
line...