session.rb

[1] pry(main)> dv = Daru::Vector.new ['third', 'third', 'first', 'second'], type: :category
=> #<Daru::Vector(4)>
      0  third
      1  third
      2  first
      3 second
[2] pry(main)> dv.order
=> ["third", "first", "second"]
[3] pry(main)> dv.order = ['first', 'second', 'thrd']      
ArgumentError: The contents of new and old order must be the same.
from /home/ubuntu/workspace/daru/lib/daru/category.rb:124:in `order='
[4] pry(main)> dv.order = ['first', 'second', 'third']                                         
=> ["first", "second", "third"]
[5] pry(main)> dv.sort!                                                                        
ArgumentError: Can not apply sort when vector is unordered
from /home/ubuntu/workspace/daru/lib/daru/category.rb:238:in `assert_ordered'
[6] pry(main)> dv.ordered = true
=> true
[7] pry(main)> dv.sort!
=> #<Daru::Vector(4)>
      2  first
      3 second
      0  third
      1  third
[9] pry(main)> dv.eq 'third'                                                                   
=> #<Daru::Core::Query::BoolArray:10944520 bool_arry=[false, false, true, true]>
[10] pry(main)> dv.where(dv.mt 'first')
=> #<Daru::Vector(3)>
      3 second
      0  third
      1  third