#*****************************************************************************80
#
## president_heights_bar makes a bar plot of Presidential heights.
#
#  Licensing:
#
#    This code is distributed under the MIT license. 
#
#  Modified:
#
#    26 August 2020
#
#  Author:
#
#    John Burkardt
#
cat ( date ( ), "\n" )
cat ( "\n" )
cat ( "president_heights_bar\n" )
cat ( " ", version$version.string, "\n" )
cat ( "  Create a bar plot of the height in inches of US presidents." )

filename = "president_heights_data.txt"
data <- read.table ( filename, header = FALSE )

filename = "president_heights_bar.png"
png ( filename )

barplot ( data[,1], 
  col = 'blue',
  xlab = "Index", 
  ylab = "Height (inches)",
  main = "US President Heights" )

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

quit ( )