statsample_error.rb

(venv) lokeshh:~/workspace/sciruby-notebooks (update_notebooks) $ gem uninstall statsample

You have requested to uninstall the gem:
        statsample-2.0.1

sciruby-full-0.2.7 depends on statsample (~> 2.0)
statsample-bivariate-extension-1.2.0 depends on statsample (~> 2.0)
statsample-glm-0.2.1 depends on statsample (~> 2.0)
If you remove this gem, these dependencies will not be met.
Continue with Uninstall? [yN]  y
Successfully uninstalled statsample-2.0.1
(venv) lokeshh:~/workspace/sciruby-notebooks (update_notebooks) $ gem uninstall statsample-bivariate-extension
Successfully uninstalled statsample-bivariate-extension-1.2.0
(venv) lokeshh:~/workspace/sciruby-notebooks (update_notebooks) $ gem install statsample-bivariate-extension
Fetching: statsample-2.0.1.gem (100%)
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Thanks for installing statsample.

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Successfully installed statsample-2.0.1
Fetching: statsample-bivariate-extension-1.2.0.gem (100%)
Successfully installed statsample-bivariate-extension-1.2.0
2 gems installed
(venv) lokeshh:~/workspace/sciruby-notebooks (update_notebooks) $ irb
2.2.1 :001 > require 'statsample'
 => true 
2.2.1 :002 > 
2.2.1 :003 >   Statsample::Analysis.store(Statsample::Bivariate::Polychoric) do 
2.2.1 :004 >       ct=Matrix[[rand(10)+50, rand(10)+50,  rand(10)+1],
2.2.1 :005 >                   [rand(20)+5,  rand(50)+4,   rand(10)+1],
2.2.1 :006 >                   [rand(8)+1,   rand(12)+1,   rand(10)+1]]
2.2.1 :007?>   
2.2.1 :008 >       # Estimation of polychoric correlation using two-step (default)
2.2.1 :009 >       poly=polychoric(ct, :name=>"Polychoric with two-step", :debug=>false)
2.2.1 :010?>     summary poly
2.2.1 :011?>   
2.2.1 :012 >       # Estimation of polychoric correlation using joint method (slow)
2.2.1 :013 >       poly=polychoric(ct, :method=>:joint, :name=>"Polychoric with joint")
2.2.1 :014?>     summary poly
2.2.1 :015?>   
2.2.1 :016 >       # Uses polychoric series (not recomended)
2.2.1 :017 >     
2.2.1 :018 >       poly=polychoric(ct, :method=>:polychoric_series, :name=>"Polychoric with polychoric series")
2.2.1 :019?>     summary poly
2.2.1 :020?>   end
LoadError: cannot load such file -- statsample/bivariate/polychoric
        from (irb):3
        from /home/ubuntu/.rvm/rubies/ruby-2.2.1/bin/irb:11:in `<main>'
2.2.1 :021 > 
2.2.1 :022 >   Statsample::Analysis.run_batch