Module: KMeansClusterer::Utils

Defined in:
lib/kmeans-clusterer.rb

Class Method Summary collapse

Class Method Details

.ensure_matrix(x, typecode = nil) ⇒ Object 



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# File 'lib/kmeans-clusterer.rb', line 7

def self.ensure_matrix x, typecode = nil
  if x.is_a?(NMatrix)
    x
  elsif defined?(GSL::Matrix) && x.is_a?(GSL::Matrix)
    x.to_nm
  else
    NMatrix.cast(x, typecode)
  end
end

.ensure_narray(x, typecode = nil) ⇒ Object 



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# File 'lib/kmeans-clusterer.rb', line 17

def self.ensure_narray x, typecode = nil
  x.is_a?(NArray) ? x : NArray.cast(x, typecode)
end