Class: YahooFinance::HistoricalQuote

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

Overview

‘Historical’ quote retrieval.

Constant Summary collapse

@@date_re = 
/([0-9]{1,2})-([A-Za-z]+)-([0-9]{1,2})/
@@months = 
%w( Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec )

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sym, valarray = nil, &block) ⇒ HistoricalQuote

Returns a new instance of HistoricalQuote.



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# File 'lib/yahoofinance.rb', line 340

def initialize( sym, valarray=nil, &block )
  @symbol = sym.upcase
  if valarray

    @date = HistoricalQuote.parse_date( valarray[0] )
    @open = valarray[1].to_f
    @high = valarray[2].to_f
    @low = valarray[3].to_f
    @close = valarray[4].to_f
    @volume = valarray[5].to_i
    @adjClose = valarray[6].to_f
    @recno = valarray[7].to_i if valarray.size >= 8
  end
  if block_given?
    instance_eval( &block )
  end
end

Instance Attribute Details

#adjClose ⇒ Object

Returns the value of attribute adjClose.



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# File 'lib/yahoofinance.rb', line 338

def adjClose
  @adjClose
end

#close ⇒ Object

Returns the value of attribute close.



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# File 'lib/yahoofinance.rb', line 338

def close
  @close
end

#date ⇒ Object

Returns the value of attribute date.



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# File 'lib/yahoofinance.rb', line 337

def date
  @date
end

#high ⇒ Object

Returns the value of attribute high.



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# File 'lib/yahoofinance.rb', line 338

def high
  @high
end

#low ⇒ Object

Returns the value of attribute low.



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# File 'lib/yahoofinance.rb', line 338

def low
  @low
end

#open ⇒ Object

Returns the value of attribute open.



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# File 'lib/yahoofinance.rb', line 337

def open
  @open
end

#recno ⇒ Object

Returns the value of attribute recno.



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# File 'lib/yahoofinance.rb', line 337

def recno
  @recno
end

#symbol ⇒ Object

Returns the value of attribute symbol.



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# File 'lib/yahoofinance.rb', line 337

def symbol
  @symbol
end

#volume ⇒ Object

Returns the value of attribute volume.



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# File 'lib/yahoofinance.rb', line 338

def volume
  @volume
end

Class Method Details

.parse_date(date) ⇒ Object

This method is obsolete since the Yahoo format change. However, I am leaving it here for API stability.



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# File 'lib/yahoofinance.rb', line 365

def HistoricalQuote.parse_date( date )
  # Yahoo changed the format of the date column. It is now in the
  # same format as this method returned, so this method just
  # returns the same date.
  return date
#       md = @@date_re.match( date )
#       if md
#         if md[3].to_i > 30
#           year = "19#{md[3]}"
#         else
#           year = "20#{md[3]}"
#         end
#         return "#{year}-%02d-%02d" % [(@@months.index(md[2]) + 1), md[1].to_i]
#       else
#         return date
#       end
end

.parse_date_to_Date(date) ⇒ Object 



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# File 'lib/yahoofinance.rb', line 383

def HistoricalQuote.parse_date_to_Date( date )
  return Date.parse( parse_date( date ) )
end

Instance Method Details

#date_to_Date ⇒ Object 



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# File 'lib/yahoofinance.rb', line 396

def date_to_Date
  return Date.parse( @date )
end

#to_a ⇒ Object 



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# File 'lib/yahoofinance.rb', line 391

def to_a
  return [] << symbol << date << open << high << 
    low << close << volume << adjClose
end

#to_s ⇒ Object 



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# File 'lib/yahoofinance.rb', line 387

def to_s
  return "#{symbol},#{date},#{open},#{high},#{low},#{close},#{volume},#{adjClose}"
end