In [1]:
require 'daru/view'
Install the spreadsheet gem version ~>1.1.1 for using spreadsheet functions.

Install the mechanize gem version ~>2.7.5 for using mechanize functions.
Out[1]:
true
In [2]:
Daru::View.plotting_library = :googlecharts
Out[2]:
:googlecharts
In [8]:
data = [
          ['Month', 'Bolivia', 'Ecuador', 'Madagascar', 'Papua New Guinea', 'Rwanda', 'Average'],
         ['2004/05',  165,      938,         522,             998,           450,      614.6],
         ['2005/06',  135,      1120,        599,             1268,          288,      682],
         ['2006/07',  157,      1167,        587,             807,           397,      623],
         ['2007/08',  139,      1110,        615,             968,           215,      609.4],
         ['2008/09',  136,      691,         629,             1026,          366,      569.6]
  ]
combo_chart_table = Daru::View::Table.new(data)
combo_chart_table.show_in_iruby
Out[8]:
In [7]:
combo_chart_options = {
      title: 'Monthly Coffee Production by Country',
      vAxis: {title: 'Cups'},
      hAxis: {title: 'Month'},
      seriesType: 'bars',
      series: {5 => {type: 'line'}}, # can' do like that 5: {type: 'line'}
      type: :combo, height: 400
}
combo_chart_chart = Daru::View::Plot.new(combo_chart_table.table, combo_chart_options)
combo_chart_chart.show_in_iruby
Out[7]: