Class: Indicator::AutoGen::Ppo

Inherits:
Base
  • Object
show all
Defined in:
lib/indicator/auto_gen/ppo.rb

Overview

Ta-Lib function mapping class Function: ‘PPO’ Description: ‘Percentage Price Oscillator’ This file has been autogenerated - Do Not Edit.

Instance Attribute Summary collapse

Attributes inherited from Base

#name

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

inherited, #map_ohlcv

Methods included from DataMapper

#default_getter, #default_getter=, #map

Constructor Details

#initialize(*args) ⇒ Ppo

Returns a new instance of Ppo.



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# File 'lib/indicator/auto_gen/ppo.rb', line 13

def initialize(*args)
  if args.first.is_a? Hash
    h = args.first
    @fast_period = h[:fast_period] || 12
    @slow_period = h[:slow_period] || 26
    @ma_type = h[:ma_type] || 0
  else
    @fast_period = args[0] || 12 
    @slow_period = args[1] || 26 
    @ma_type = args[2] || 0 
  end
  
  @func = TaLib::Function.new("PPO")
end

Instance Attribute Details

#fast_period ⇒ Object

Fast Period <Integer>



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# File 'lib/indicator/auto_gen/ppo.rb', line 7

def fast_period
  @fast_period
end

#ma_type ⇒ Object

MA Type <MA Type>



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# File 'lib/indicator/auto_gen/ppo.rb', line 11

def ma_type
  @ma_type
end

#slow_period ⇒ Object

Slow Period <Integer>



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# File 'lib/indicator/auto_gen/ppo.rb', line 9

def slow_period
  @slow_period
end

Class Method Details

.arguments ⇒ Object

The list of arguments



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# File 'lib/indicator/auto_gen/ppo.rb', line 34

def self.arguments
  [ :fast_period, :slow_period, :ma_type ]
end

.inputs ⇒ Object

The minimum set of inputs required



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# File 'lib/indicator/auto_gen/ppo.rb', line 39

def self.inputs
  [ :in_real ]
end

.outputs ⇒ Object

The outputs generated by this function



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# File 'lib/indicator/auto_gen/ppo.rb', line 44

def self.outputs
  [ :out_real ]
end

.price_input? ⇒ Boolean

Is price data required as an input

Returns:

  • (Boolean) 


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# File 'lib/indicator/auto_gen/ppo.rb', line 29

def self.price_input?
  false
end

Instance Method Details

#run(in_real) ⇒ Object 



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# File 'lib/indicator/auto_gen/ppo.rb', line 48

def run(in_real)
  len = in_real.length
  @func.in_real(0, map(in_real))

  @func.opt_int(0, @fast_period)
  @func.opt_int(1, @slow_period)
  @func.opt_int(2, @ma_type)

  out_real = Array.new(len)
  @func.out_real(0, out_real)

  @func.call(0, len - 1)

  out_real
end