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Label encoding across multiple columns in scikit-learn

...mn; I'd rather just have one big LabelEncoder objects that works across all my columns of data. 21 Answers ...
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What is __main__.py?

What is the __main__.py file for, what sort of code should I put into it, and when should I have one? 5 Answers ...
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Code Golf - π day

... Yeah, the ( operator alone allowed to shed 6 strokes! – Dan Andreatta Mar 18 '10 at 10:25 add a comment  |  ...
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How to override the copy/deepcopy operations for a Python object?

...ully, but this is the first time I've actually gone about overloading the __copy__ and __deepcopy__ methods. I've already Googled around and looked through the built-in Python modules to look for instances of the __copy__ and __deepcopy__ functions (e.g. sets.py , decimal.py , and fracti...
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How do I unload (reload) a Python module?

.... When targeting 3 or later, either reference the appropriate module when calling reload or import it. I think that this is what you want. Web servers like Django's development server use this so that you can see the effects of your code changes without restarting the server process itself. To quo...
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Standardize data columns in R

I have a dataset called spam which contains 58 columns and approximately 3500 rows of data related to spam messages. 15 ...
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addEventListener vs onclick

...se); Using this approach (DOM Level 2 events), you can attach a theoretically unlimited number of events to any single element. The only practical limitation is client-side memory and other performance concerns, which are different for each browser. The examples above represent using an anonymous...
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How to validate an Email in PHP?

...hould be replaced by the preg family (PCRE Regex Functions). There are a small amount of differences, reading the Manual should suffice. Update 1: As pointed out by @binaryLV: PHP 5.3.3 and 5.2.14 had a bug related to FILTER_VALIDATE_EMAIL, which resulted in segfault when validating large ...
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Difference between Repository and Service Layer?

... bool Delete(int id); T Get(int id); bool SaveChanges(); } and call Get(id). Repository layer exposes basic CRUD operations. Service layer exposes business logic, which uses repository. Example service could look like: public interface IUserService { User GetByUserName(string userNa...
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Windows batch: echo without new line

... So you basically need an IF ERRORLEVEL==0 (...) ELSE (...) just to not harm your environment in those circumstances. Sheesh. – SilverbackNet Sep 22 '17 at 0:33 ...