Class: Tremolo::DataPoint

Inherits:
Object
  • Object
show all
Defined in:
lib/tremolo/data_point.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(series_name, columns, data) ⇒ DataPoint

Returns a new instance of DataPoint.



9
10
11
12
13
14
 
# File 'lib/tremolo/data_point.rb', line 9

def initialize(series_name, columns, data)
  self.series_name = series_name
  self.columns = columns.sort

  @data = data
end

Instance Attribute Details

#columns ⇒ Object

Returns the value of attribute columns.



7
8
9
 
# File 'lib/tremolo/data_point.rb', line 7

def columns
  @columns
end

#series_name ⇒ Object

Returns the value of attribute series_name.



7
8
9
 
# File 'lib/tremolo/data_point.rb', line 7

def series_name
  @series_name
end

Class Method Details

.from_hash(series_name, h) ⇒ Object 



3
4
5
 
# File 'lib/tremolo/data_point.rb', line 3

def self.from_hash(series_name, h)
  new(series_name, h.reduce(:merge).keys, h)
end

Instance Method Details

#as_json ⇒ Object 



20
21
22
23
24
25
26
 
# File 'lib/tremolo/data_point.rb', line 20

def as_json
  [{
    name: series_name,
    columns: columns,
    points: points
  }]
end

#points ⇒ Object 



16
17
18
 
# File 'lib/tremolo/data_point.rb', line 16

def points
  @points ||= @data.map {|h| h.values_at(*columns) }
end