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Pandas conditional creation of a series/dataframe column

I have a dataframe along the lines of the below: 8 Answers 8 ...
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Shuffle two list at once with same order

I'm using the nltk library's movie_reviews corpus which contains a large number of documents. My task is get predictive performance of these reviews with pre-processing of the data and without pre-processing. But there is problem, in lists documents and documents2 I have the same documents ...
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How do you generate dynamic (parameterized) unit tests in python?

I have some kind of test data and want to create a unit test for each item. My first idea was to do it like this: 25 Answer...
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RGB to hex and hex to RGB

How to convert colors in RGB format to hex format and vice versa? 50 Answers 50 ...
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Why do we check up to the square root of a prime number to determine if it is prime?

To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number? ...
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Cache Invalidation — Is there a General Solution?

Phil Karlton 9 Answers 9 ...
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PHP - Check if two arrays are equal

I'd like to check if two arrays are equal. I mean: same size, same index, same values. How can I do that? 15 Answers ...
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How to check command line parameter in “.bat” file?

My OS is Windows Vista. I need to have a ".bat" file where I need to check if user enters any command-line parameter or not. If does then if the parameter equals to -b then I will do something otherwise I will flag "Invalid input". If user does not enter any command-line parameter then I will d...
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Regular Expression For Duplicate Words

I'm a regular expression newbie, and I can't quite figure out how to write a single regular expression that would "match" any duplicate consecutive words such as: ...
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How is __eq__ handled in Python and in what order?

Since Python does not provide left/right versions of its comparison operators, how does it decide which function to call? 3...