Class: Array

Inherits:

Object

• Object
• Array

show all

Defined in:

lib/core_ext.rb

Instance Method Summary (collapse)

• - (Boolean) is_numeric_2d_array?

  Returns true if all elements are numeric in form [X,Y].

• - (Boolean) is_numeric_array?

  Returns true if all elements are numeric.

• - (Object) x_values

  Returns all the X values of an array containing elements of the form [X,Y].

• - (Object) y_values

  Returns all the Y values of an array containing elements of the form [X,Y].

8
9
10
11
12
13
14

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

def is_numeric_2d_array?
  self.all? do |data|
    data.is_a?(Array) &&
    data.size == 2 &&
    data.is_numeric_array?
  end
end

3
4
5

# File 'lib/core_ext.rb', line 3

def is_numeric_array?
  self.all? {|data| data.is_a?(Numeric) }
end

17
18
19
20

# File 'lib/core_ext.rb', line 17

def x_values
  raise ArgumentError.new("#{self.inspect} is not a 2D numeric array") unless is_numeric_2d_array?
  self.collect { |item| item.first }
end

23
24
25
26

# File 'lib/core_ext.rb', line 23

def y_values
  raise ArgumentError.new("#{self.inspect} is not a 2D numeric array") unless is_numeric_2d_array?
  self.collect { |item| item.last }
end