#*****************************************************************************80
#
## schoolyear_barh creates a horizontal bar plot of schoolyear lengths.
#
#  Licensing:
#
#    This code is distributed under the MIT license. 
#
#  Modified:
#
#    29 August 2020
#
#  Author:
#
#    John Burkardt
#
cat ( date ( ), "\n" )
cat ( "\n" )
cat ( "schoolyear_barh\n" )
cat ( " ", version$version.string, "\n" )
cat ( "  Get data of country names and school year lengths.\n" )
cat ( "  Make a horizontal bar plot, with labeled bars.\n" )

filename = "schoolyear_data.csv"
data <- read.table ( filename, sep = ",", header = TRUE )

filename = "schoolyear_barh.png"
png ( filename )

par ( mar = c ( 4, 8, 4, 4 ) )

barplot ( data[,2], 
  names.arg = data[,1],
  las = 1,
  cex.names = 0.75,
  col = 'cyan',
  xlab = "School Year in Days", 
  ylab = "",
  main = "International Variation in School Year",
  horiz = TRUE )

grid ( )
cat ( '  Graphics saved as "', filename, '"\n' )
#
#  Terminate.
#
cat ( "\n" )
cat ( "schoolyear_barh:\n" )
cat ( "  Normal end of execution.\n" )

quit ( )