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 [4]:
data = [
          ['Year', 'Sales', 'Expenses'],
          ['2013',  1000,      400],
          ['2014',  1170,      460],
          ['2015',  660,       1120],
          ['2016',  1030,      540]
  ]
area_chart_table = Daru::View::Table.new(data)
area_chart_table.show_in_iruby
Out[4]:
In [9]:
area_chart_options = {
  type: :area
}
area_chart_chart = Daru::View::Plot.new(area_chart_table.table, area_chart_options)
area_chart_chart.show_in_iruby
Out[9]:
In [12]:
area_chart_options = {
   title: 'Company Performance',
   hAxis: {title: 'Year',  titleTextStyle: {color: '#333'}},
   vAxis: {minValue: 0},
  type: :area
}
area_chart_chart = Daru::View::Plot.new(area_chart_table.table, area_chart_options)
area_chart_chart.show_in_iruby
Out[12]:

Stacked area chart

In [17]:
area_chart_options = {
isStacked: true,
          height: 300,
          legend: {position: 'top', maxLines: 3},
          vAxis: {minValue: 0},
  type: :area
}
area_chart_chart = Daru::View::Plot.new(area_chart_table.table, area_chart_options)
area_chart_chart.show_in_iruby
Out[17]:

Stacked relative

In [15]:
area_chart_options = {
   isStacked: 'relative',
          height: 300,
          legend: {position: 'top', maxLines: 3},
          vAxis: {
            minValue: 0,
            ticks: [0, 0.3, 0.6, 0.9, 1]
          },
  type: :area
}
area_chart_chart = Daru::View::Plot.new(area_chart_table.table, area_chart_options)
area_chart_chart.show_in_iruby
Out[15]: