In [1]:

    

require 'daru/view'


    

    
Out[1]:





true

In [2]:

    

Daru::View.plotting_library = :googlecharts


    

    















    
Out[2]:





:googlecharts

In [3]:

    

idx = Daru::Index.new ['City', '2010 Population',]
data_rows = [
['New York City, NY', 8175000],
        ['Los Angeles, CA', 3792000],
        ['Chicago, IL', 2695000],
        ['Houston, TX', 2099000],
        ['Philadelphia, PA', 1526000]
]
df_city_pop = Daru::DataFrame.rows(data_rows)
df_city_pop.vectors = idx
df_city_pop


    

    
Out[3]:




 Daru::DataFrame(5x2) 

  

  
    

      

      
        
City
      
        
2010 Population
      
    
  

  

  
    

      
0
      
        
New York City, NY
      
        
8175000
      
    
  
    

      
1
      
        
Los Angeles, CA
      
        
3792000
      
    
  
    

      
2
      
        
Chicago, IL
      
        
2695000
      
    
  
    

      
3
      
        
Houston, TX
      
        
2099000
      
    
  
    

      
4
      
        
Philadelphia, PA
      
        
1526000
      
    
  

  

In [5]:

    

bar_basic_options = {
  title: 'Population of Largest U.S. Cities',
  type: :bar,
}
bar_basic_chart = Daru::View::Plot.new(df_city_pop, bar_basic_options, chart_class: 'Charteditor')
bar_basic_chart.show_in_iruby


    

    
Out[5]:

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