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Comment by antirez | Hacker News Reader

The graphs change a lot searching for "PHP array" VS "Python array" VS "Ruby array":

http://www.google.com/insights/search/#cat=31&q=python%2...

Possibly comparing a search that is about what a real user could type into the search engine is more accurate, and filters out other stuff like all the search for "Python" as animal.

Edit: btw using "hash" instead of "array" changes the results a lot: http://www.google.com/insights/search/#cat=31&q=python%2...

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http://www.google.com/insights/search/#cat=31&q=python%2... - in Python "arrays" are called lists...

Thanks amix, not in Ruby so the final link could be this:

http://www.google.com/insights/search/#cat=31&q=python%2...

Actually, since a PHP array is more like a combination of a python list and a python dictionary or a ruby hash and a ruby array, this is the best comparison: http://www.google.com/insights/search/#cat=31&q=python%2...

Much of PHP's popularity comes from countries where the other two aren't even known, like Bangladesh. Limiting the search to either San Francisco or Boston gives the most useful results: http://www.google.com/insights/search/#cat=31&q=python%2...

http://www.google.com/insights/search/#cat=31&q=python%2... -- In python, "hashes" are called dictionaries

There is already a filter on the search that limits the results to programming queries, but I don't know the algorithm.

I tested by comparing the results for "ruby" and "rails". The curves were virtually identical, which would be impossible if there were very much noise in the results for either term.

using "ruby on rails" massively changes the results: http://www.google.com/insights/search/#cat=31&q=python%2...

Try this example:

http://www.google.com/insights/search/#cat=31&q=ruby%2Cr...

There's still a strong correlation among the three queries.

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