Class: DataSet::DailyDataSet

Inherits:
DataSet
  • Object
show all
Defined in:
lib/data_set/daily_data_set.rb

Instance Attribute Summary

Attributes inherited from DataSet

#count, #datapoints, #max_date, #max_value, #min_date, #min_value

Instance Method Summary collapse

Methods inherited from DataSet

#value_for_date, #values, #values_for_google_chart

Constructor Details

#initialize(point_array, count = 30) ⇒ DailyDataSet

Returns a new instance of DailyDataSet.



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# File 'lib/data_set/daily_data_set.rb', line 3

def initialize( point_array, count = 30 )

  @datapoints ||= {} #[["2008-06-01", 200.58], ["2008-06-02", 205.39]]
  @count = count
  
  point_array.each do |date, value|
    value = value.to_f
    @datapoints[date.to_s] = value
  end

  fill_with_zeroes(@count)
end

Instance Method Details

#date_labels ⇒ Object

Array of dates in “Nov 18” format corresponding to datapoints at one week increments working backwords from today. Compare today’s DOW (“Mon”) to each date in the array, and only return “Nov 18” for dates that match the DOW.



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# File 'lib/data_set/daily_data_set.rb', line 24

def date_labels
  if @count < 90
    dates.collect { |date| date.to_date.strftime('%d') == Time.now.strftime('%a') ? date.to_date.strftime("%b %e") : '' }
  else
    dates.collect { |date| date.to_date.strftime('%d') == '01' ? date.to_date.strftime("%b %e") : '' }
  end
end

#dates ⇒ Object

Array of dates corresponding to datapoints in “2009-11-18” format



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# File 'lib/data_set/daily_data_set.rb', line 17

def dates
  @datapoints.collect{|point| point[0]}
end

#full_weeks_in_dataset ⇒ Object 



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# File 'lib/data_set/daily_data_set.rb', line 32

def full_weeks_in_dataset
  @count.to_i / 7 
end

#month_labels ⇒ Object

Array containing month names corresponding to datapoint positions which represent the first day of the month.

”,”,‘December’,”,” 


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# File 'lib/data_set/daily_data_set.rb', line 38

def month_labels
  dates.collect{|date| date.to_date.day==1 ? date.to_date.strftime("%B") : ''}
end