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Comment on Decision tree learner will predict whether you prefer cats or dogsparent

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Ugh, I thought I'd answered this but looks like HN lost my response :-(

> How big is the pool of variables it can choose from?

Currently it is just: screenWidth/Height, browserWidth/Height, browser, browserVersion, os, referrer, city, region, country.

It picks the variables based on how well they partition the datasets into diverse sub-groups. This is the code that does that job:

https://github.com/sanity/quickdt/blob/master/src/main/java/...

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