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Save classifier to disk in scikit-learn

How do I save a trained Naive Bayes classifier to disk and use it to predict data? 6 Answers ...
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Rails and PostgreSQL: Role postgres does not exist

...e installed PostgreSQL on my Mac OS Lion, and am working on a rails app. I use RVM to keep everything separate from my other Rails apps. ...
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Git - push current branch shortcut

Is there a shortcut to tell Git to push the current tracking branch to origin? Note: I know that I can change the default push behavior , but I am looking for an ad-hoc solution that does not change the default behavior. ...
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Django: multiple models in one template using forms [closed]

I'm building a support ticket tracking app and have a few models I'd like to create from one page. Tickets belong to a Customer via a ForeignKey. Notes belong to Tickets via a ForeignKey as well. I'd like to have the option of selecting a Customer (that's a whole separate project) OR creating a new ...
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Count Rows in Doctrine QueryBuilder

I'm using Doctrine's QueryBuilder to build a query, and I want to get the total count of results from the query. 10 Answ...
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Java: random long number in 0

... Starting from Java 7 (or Android API Level 21 = 5.0+) you could directly use ThreadLocalRandom.current().nextLong(n) (for 0 ≤ x < n) and ThreadLocalRandom.current().nextLong(m, n) (for m ≤ x < n). See @Alex's answer for detail. If you are stuck with Java 6 (or Android...
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How do you import a large MS SQL .sql file?

I use RedGate SQL data compare and generated a .sql file, so I could run it on my local machine. But the problem is that the file is over 300mb, which means I can't do copy and paste because the clipboard won't be able to handle it, and when I try to open the file in SQL Server Management Studio I g...
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What does “error: option --single-version-externally-managed not recognized” indicate?

I seem to have suddenly started encounter the error error: option --single-version-externally-managed not recognized when pip install ing varions packages (including PyObjC and astropy ). I've never seen this error before, but it's now also showing up on travis-ci builds for which nothing has...
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Azure table storage returns 400 Bad Request

I ran this in debug mode, and I attach an image with the details of the exception. How can I know what went wrong? I was trying to inset data in a table. Can't azure give me more details? ...
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How do I kill all the processes in Mysql “show processlist”?

Because I see a lot of processes there, and the "time" column shows big values for all of them. 23 Answers ...