A gist about displaying intervals using R and ggplot

timelines.integers.R

library("ggplot2")

logfile = "
   task a,2,9
   task b,3,8
   task c,1,4
   task d,5,12
"

# read in the sample logfile in a data frame
df = read.csv(
       text=logfile,
       header=FALSE,
       sep = ",", 
       stringsAsFactors=FALSE,
       blank.lines.skip=TRUE
     )

# give the column a proper name
names(df)=c('name', 'start','end')


# display the timeline intervals sorted by start time

# display the timeline intervals sorted by start time
ggplot(df, aes(start, reorder(name, -start), colour = name)) + 
  geom_errorbarh(aes(xmin = start,xmax = end, height = 0.2))