Class: PhillyFrbAsDataframe::PartisanConflict

Inherits:
Object
  • Object
show all
Includes:
HTTParty
Defined in:
lib/philly_frb_as_dataframe/partisan_conflict.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ PartisanConflict

Returns a new instance of PartisanConflict.



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# File 'lib/philly_frb_as_dataframe/partisan_conflict.rb', line 13

def initialize
end

Instance Attribute Details

#ary ⇒ Object (readonly)

Returns the value of attribute ary.



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# File 'lib/philly_frb_as_dataframe/partisan_conflict.rb', line 11

def ary
  @ary
end

Instance Method Details

#fetch(start: nil, fin: nil) ⇒ Object 



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# File 'lib/philly_frb_as_dataframe/partisan_conflict.rb', line 16

def fetch(start: nil, fin: nil)
  dat = _fetch_data.dup
  hsh = dat.map{|r| r.to_hash }.each{|h| h['Timestamps_'] = DateTime.strptime("#{h['Month']} 01 #{h['Year']}", '%B %d %Y').to_date }
  keys = hsh.first.keys
  vals = hsh.map(&:values).transpose

  df = {}; (0..(keys.length-1)).to_a.each{|i| df[keys[i]] = vals[i]}

  df = Polars::DataFrame.new(df)
  df = df.filter(Polars.col('Timestamps_') <= fin.to_date) unless start.nil?
  df = df.filter(Polars.col('Timestamps_') >= start.to_date) unless fin.nil?
  s = Polars::Series.new('Timestamps', df['Timestamps_'].to_a)
  df = df.insert_column(0,s).drop(['Month', 'Year', 'Timestamps_'])

  df
end