method

rows

Ruby latest stable (v2_5_5) - 0 notes - Class: Matrix

1_8_6_287 (0)
1_8_7_72 (0)
1_8_7_330 (0)
1_9_1_378 (-38)
1_9_2_180 (0)
1_9_3_125 (0)
1_9_3_392 (0)
2_1_10 (0)
2_2_9 (0)
2_4_6 (0)
2_5_5 (0)
2_6_3 (0)
What's this?

rows(rows, copy = true) public

Creates a matrix where rows is an array of arrays, each of which is a row of the matrix. If the optional argument copy is false, use the given arrays as the internal structure of the matrix without copying.

Matrix.rows([[25, 93], [-1, 66]])
   =>  25 93
       -1 66

Show source

# File lib/matrix.rb, line 62
  def Matrix.rows(rows, copy = true)
    rows = convert_to_array(rows, copy)
    rows.map! do |row|
      convert_to_array(row, copy)
    end
    size = (rows[0] || []).size
    rows.each do |row|
      raise ErrDimensionMismatch, "row size differs (#{row.size} should be #{size})" unless row.size == size
    end
    new rows, size
  end

rows

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