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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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Does Java support default parameter values?

... complicated. For other methods, renaming some cases or using a parameter object can help. This is when you have enough complexity that differentiating is difficult. A definite case is where you have to differentiate using the order of parameters, not just number and type. ...
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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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Multiple variables in a 'with' statement?

Is it possible to declare more than one variable using a with statement in Python? 6 Answers ...
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What is the difference between a deep copy and a shallow copy?

What is the difference between a deep copy and a shallow copy? 31 Answers 31 ...
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What does the `forall` keyword in Haskell/GHC do?

I'm beginning to understand how the forall keyword is used in so-called "existential types" like this: 8 Answers ...
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How do I compare two hashes?

I am trying to compare two Ruby Hashes using the following code: 14 Answers 14 ...
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How can I compare two lists in python and return matches

I want to take two lists and find the values that appear in both. 19 Answers 19 ...
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How do you get the logical xor of two variables in Python?

How do you get the logical xor of two variables in Python? 24 Answers 24 ...
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How to get function parameter names/values dynamically?

...getParamNames(getParamNames) // returns ['func'] getParamNames(function (a,b,c,d){}) // returns ['a','b','c','d'] getParamNames(function (a,/*b,c,*/d){}) // returns ['a','d'] getParamNames(function (){}) // returns [] Edit: With the invent of ES6 this function can be tripped up by default paramet...