Class: NTable::LabeledAxis

Inherits:
Object
  • Object
show all
Defined in:
lib/ntable/axis.rb

Overview

An axis in which the labels are explicitly provided as strings.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*labels_) ⇒ LabeledAxis

Create a LabeledAxis given an array of the label strings. Symbols may also be provided, but will be converted to strings.



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# File 'lib/ntable/axis.rb', line 125

def initialize(*labels_)
  labels_ = labels_.flatten
  @a = labels_.map{ |label_| label_.to_s }
  @h = {}
  @a.each_with_index{ |n_, i_| @h[n_] = i_ }
  @size = labels_.size
end

Instance Attribute Details

#size ⇒ Object (readonly)

Returns the value of attribute size.



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# File 'lib/ntable/axis.rb', line 152

def size
  @size
end

Instance Method Details

#==(obj_) ⇒ Object 



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# File 'lib/ntable/axis.rb', line 138

def ==(obj_)
  obj_.is_a?(LabeledAxis) && @a == obj_.instance_variable_get(:@a)
end

#eql?(obj_) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ntable/axis.rb', line 134

def eql?(obj_)
  obj_.is_a?(LabeledAxis) && @a.eql?(obj_.instance_variable_get(:@a))
end

#from_json_object(json_obj_) ⇒ Object 



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# File 'lib/ntable/axis.rb', line 168

def from_json_object(json_obj_)
  initialize(json_obj_['labels'] || [])
end

#hash ⇒ Object 



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# File 'lib/ntable/axis.rb', line 142

def hash
  @a.hash
end

#index(label_) ⇒ Object 



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# File 'lib/ntable/axis.rb', line 155

def index(label_)
  @h[label_.to_s]
end

#inspect ⇒ Object Also known as: to_s 



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# File 'lib/ntable/axis.rb', line 146

def inspect
  "#<#{self.class}:0x#{object_id.to_s(16)} #{@a.inspect}>"
end

#label(index_) ⇒ Object 



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# File 'lib/ntable/axis.rb', line 159

def label(index_)
  @a[index_]
end

#to_json_object(json_obj_) ⇒ Object 



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# File 'lib/ntable/axis.rb', line 164

def to_json_object(json_obj_)
  json_obj_['labels'] = @a
end