Method: Chainer::Parameter#initialize

Defined in:
lib/chainer/parameter.rb

#initialize(initializer: nil, shape: nil, name: nil) ⇒ Parameter

Returns a new instance of Parameter.



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# File 'lib/chainer/parameter.rb', line 5

def initialize(initializer: nil, shape: nil, name: nil)
  if initializer.nil?
    initializer = Chainer::Initializers.nan()
  elsif initializer.kind_of?(Numeric)
    initializer = Initializers::Constant.new(initializer)
  end

  if shape.nil?
    if Chainer.array?(initializer)
      super(initializer, name: name)
    else
      super(name: name)
      @initializer = initializer
      dtype = initializer.respond_to?(:dtype) ? initializer.dtype : 'SFloat'
      @grad_initializer = Chainer::Initializers.nan(dtype: dtype)
    end
  else
    if Chainer.array?(initializer)
      initializer = Initializers::Constant.new(initializer)
    end
    data = Chainer::Initializers.generate_array(initializer, shape)
    xm = Chainer.get_array_module(data)
    grad = xm::NArray[*[1, 2]].new_fill(-922337203)
    super(data, name: name, grad: grad)
  end

  @update_rule = nil
end