Class: RubyTechnicalAnalysis::CommodityChannelIndex

Inherits:

Indicator

• Object
• Indicator
• RubyTechnicalAnalysis::CommodityChannelIndex

Defined in:

lib/ruby_technical_analysis/indicators/commodity_channel_index.rb

Overview

Commodity Channel Index

Find more information at: www.fidelity.com/learning-center/trading-investing/technical-analysis/technical-indicator-guide/cci

Instance Attribute Summary

• #period ⇒ Object readonly

  Returns the value of attribute period.

Attributes inherited from Indicator

#series

Instance Method Summary

• #call ⇒ Float

  The current Commodity Channel Index value.

• #initialize(series: [], period: 20) ⇒ CommodityChannelIndex constructor

  A new instance of CommodityChannelIndex.

• #valid? ⇒ Boolean

  Whether or not the object is valid.

Methods inherited from Indicator

call

Constructor Details

#initialize(series: [], period: 20) ⇒ CommodityChannelIndex

# File 'lib/ruby_technical_analysis/indicators/commodity_channel_index.rb', line 10

def initialize(series: [], period: 20)
  @period = period

  super(series: series)
end

Instance Attribute Details

#period ⇒ Object (readonly)

Returns the value of attribute period.

# File 'lib/ruby_technical_analysis/indicators/commodity_channel_index.rb', line 6

def period
  @period
end

Instance Method Details

#call ⇒ Float

# File 'lib/ruby_technical_analysis/indicators/commodity_channel_index.rb', line 17

def call
  calculate_cci
end

#valid? ⇒ Boolean

# File 'lib/ruby_technical_analysis/indicators/commodity_channel_index.rb', line 22

def valid?
  min_size <= series.length
end