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What should you read? bkz knows.

Ruby 37.94% R 17.34% Shell 0.33% Python 44.39%

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bkz's Issues

Broken input: Betting on Theories

~/projects/bkz $ ruby bkz.rb --title "betting on theories"
Warning: Goodreads data missing.
/Users/robb/projects/bkz/amazon.rb:22:in `getratings': undefined method `[]' for nil:NilClass (NoMethodError)
    from /Users/robb/projects/bkz/amazon.rb:35:in `amazon_search'
    from bkz.rb:64:in `add'
    from bkz.rb:86:in `<main>'

Broken entry: A Critical Analysis of the Jhanas

This book does not exist on Amazon, but still returns an Amazon Book Rank.

Broken entry: The Little Schemer

Google Books has 49 reviews, returns 0.

Broken entry: Against Intellectual Monopoly

Amazon returns 4.5 stars, actually 3.7.

Broken entry: The Psychology of Happiness

Goodreads returns 10941, 4.18
Should return 47, 3.49

Broken entry: Programming the Universe: A Quantum Computer Scientist Takes on the Cosmos

Returns 4.5 amazon stars.
Should return 3.7.

Broken entry: The Black Swan: The Impact of the Highly Improbable Fragility

Returns no goodreads or amazon data.

Broken entry: Scientific Research on the Transcendental Meditation Program spits out weird results from amazon.

Broken entry: The Misbehavior of Markets

Amazon returns 4.0, should return 3.9

amazon_search

Currently, I am receiving this error:

Broken input: Constructibility and Mathematical Existence

~/projects/bkz $ ruby bkz.rb --title "Constructibility and Mathematical Existence"
/Users/robb/projects/bkz/amazon.rb:22:in `getratings': undefined method `[]' for nil:NilClass (NoMethodError)
    from /Users/robb/projects/bkz/amazon.rb:35:in `amazon_search'
    from bkz.rb:64:in `add'
    from bkz.rb:86:in `<main>'

Probably a result of Amazon not having any reviews for this book.

Broken entry: A Mathematician's Lament: How School Cheats Us Out of Our Most Fascinating and Imaginative Art Form

Returns 4.5 stars from Amazon, only has 3.8.

Broken entry: The Origin of Consciousness in the Breakdown of the Bicameral Mind

Amazon returns 4.3, should be 4.6

database Amazon_Book_Rank

Just a side note, you may want to add that to the database or it breaks.

Broken entry: The Man Who Knew Infinity: A Life of the Genius Ramanujan

Amazon returns 4.0, should be 4.6.

"Error in kernel$x : $ operator is invalid for atomic vectors"

bkz.R sometimes fails with:

~/projects/bkz $ Rscript bkz.R
...
Error in kernel$x : $ operator is invalid for atomic vectors
Calls: predict ... lapply -> FUN -> sapply -> lapply -> FUN -> dkernel
Execution halted

Bizarrely, if you keep trying to run the script, it eventually succeeds. It's not an issue with changes to the database, since the database isn't modified during runs. (Confirmed with a diff).