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Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]

...[44]: df Out[44]: a b c Value 0 -1.674308 foo 0.343801 0.044698 1 -2.163236 bar -2.046438 -0.116798 2 -0.199115 foo -0.458050 -0.199115 3 0.918646 bar -0.007185 -0.001006 4 1.336830 foo 0.534292 0.268245 ...
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What is Weak Head Normal Form?

... 404 I'll try to give an explanation in simple terms. As others have pointed out, head normal form d...
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Is there a way to iterate over a range of integers?

...rite a for loop. Simple, obvious code is the Go way. for i := 1; i <= 10; i++ { fmt.Println(i) } share | improve this answer | follow | ...
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Convert boolean result into number/integer

I have a variable that stores false or true , but I need 0 or 1 instead, respectively. How can I do this? 17 Answers...
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How do you add swap to an EC2 instance?

... 10 Answers 10 Active ...
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How to add a new row to an empty numpy array

... The way to "start" the array that you want is: arr = np.empty((0,3), int) Which is an empty array but it has the proper dimensionality. >>> arr array([], shape=(0, 3), dtype=int64) Then be sure to append along axis 0: arr = np.append(arr, np.array([[1,2,3]]), axis=0) arr =...
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Select the values of one property on all objects of an array in PowerShell

...erPropname – Bassie Aug 2 '16 at 14:03 2 @Bassie: Accessing a property at the collection level to...
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Why is a pure virtual function initialized by 0?

... The reason =0 is used is that Bjarne Stroustrup didn't think he could get another keyword, such as "pure" past the C++ community at the time the feature was being implemented. This is described in his book, The Design & Evolution of ...
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CSS Progress Circle [closed]

... ones I have been able to found show animated circles that go to the full 100%. 4 Answers ...
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How can I perform a culture-sensitive “starts-with” operation from the middle of a string?

... +100 I'll consider the problem of many<->one/many casemappings first and separately from handling different Normalization forms. Fo...