Method: Statsample::DominanceAnalysis::Bootstrap#initialize

Defined in:
lib/statsample/dominanceanalysis/bootstrap.rb

#initialize(ds, y_var, opts = Hash.new) ⇒ Bootstrap

Create a new Dominance Analysis Bootstrap Object

  • ds: A Daru::DataFrame object

  • y_var: Name of dependent variable

  • opts: Any other attribute of the class

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# File 'lib/statsample/dominanceanalysis/bootstrap.rb', line 97

def initialize(ds,y_var, opts=Hash.new)
  @ds    = ds
  @y_var = y_var.respond_to?(:to_sym) ? y_var.to_sym : y_var
  @n     = ds.nrows
  
  @n_samples=0
  @alpha=ALPHA
  @debug=false
  if y_var.is_a? Array
    @fields=ds.vectors.to_a - y_var
    @regression_class=Regression::Multiple::MultipleDependent
    
  else
    @fields=ds.vectors.to_a - [y_var]
    @regression_class=Regression::Multiple::MatrixEngine
  end
  @samples_ga=@fields.inject({}) { |a,v| a[v]=[]; a }

  @name=_("Bootstrap dominance Analysis:  %s over %s") % [ ds.vectors.to_a.join(",") , @y_var]
  opts.each{|k,v|
    self.send("#{k}=",v) if self.respond_to? k
  }
  create_samples_pairs            
end