In [1]:

    

require 'daru'
require 'gnuplotrb'
include GnuplotRB

index  = Daru::DateTimeIndex.date_range(:start => DateTime.new(2012,2,1), periods: 100)
vector = Daru::Vector.new(Array.new(10){ [1,2,3,4,5].shuffle }.flatten, index: index)


    

    
Out[1]:




Daru::Vector:30499660  size: 100
 
nil
2012-02-01T00:00:00+00:00
3
2012-02-02T00:00:00+00:00
5
2012-02-03T00:00:00+00:00
4
2012-02-04T00:00:00+00:00
1
2012-02-05T00:00:00+00:00
2
2012-02-06T00:00:00+00:00
3
2012-02-07T00:00:00+00:00
1
2012-02-08T00:00:00+00:00
4
2012-02-09T00:00:00+00:00
5
2012-02-10T00:00:00+00:00
2
2012-02-11T00:00:00+00:00
5
2012-02-12T00:00:00+00:00
4
2012-02-13T00:00:00+00:00
2
2012-02-14T00:00:00+00:00
1
2012-02-15T00:00:00+00:00
3
2012-02-16T00:00:00+00:00
2
2012-02-17T00:00:00+00:00
5
2012-02-18T00:00:00+00:00
3
2012-02-19T00:00:00+00:00
1
2012-02-20T00:00:00+00:00
4
2012-02-21T00:00:00+00:00
2
2012-02-22T00:00:00+00:00
4
2012-02-23T00:00:00+00:00
3
2012-02-24T00:00:00+00:00
1
2012-02-25T00:00:00+00:00
5
2012-02-26T00:00:00+00:00
4
2012-02-27T00:00:00+00:00
5
2012-02-28T00:00:00+00:00
3
2012-02-29T00:00:00+00:00
2
2012-03-01T00:00:00+00:00
1
2012-03-02T00:00:00+00:00
4
2012-03-03T00:00:00+00:00
1
...
...
2012-05-10T00:00:00+00:00

In [2]:

    

vector_plot = Plot.new([vector, with: 'linespoints'], yrange: 0..6)


    

    
Out[2]:

In [3]:

    

vector_plot.xrange('["2012-02-16":"2012-02-26"]')


    

    
Out[3]:

In [4]:

    

df = Daru::DataFrame.new({
    'Sales by Bill' => [1, 2, 3, 4, 5].shuffle,
    'Sales by Martin' => [1, 2, 3, 4, 5].shuffle,
  },
  index: index
)


    

In [5]:

    

p = Plot.new(
  df,
  style_data: 'linespoints',
  yrange: 0..6
)


    

    
Out[5]:

In [6]:

    

p.format_x('%d/%m\n%H:%M')


    

    
Out[6]: