Module: NMatrixExtensions

Defined in:
lib/nmatrix_extensions.rb

Instance Method Summary collapse

Instance Method Details

#pretty_string(opts = {}) ⇒ Object 



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# File 'lib/nmatrix_extensions.rb', line 8

def pretty_string(opts={})
  { :col_header   => nil,
    :row_header   => nil }.merge!(opts)

  ("%-3s" % "#") + opts[:col_header].inject("") { |s, a|
    s + ("%7s" % a)
  } + "\n" + self.to_a.map_with_index { |a, i|
    ("%-3s" % opts[:row_header][i]) + a.inject("") { |s, v|
      if v.is_a? Float
        s + ("%7.2f" % v)
      else
        s + ("%7d" % v)
      end
    }
  }.join("\n")
end