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How is set() implemented?
I've seen people say that set objects in python have O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have?
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How to test multiple variables against a value?
...bout the same comparison for all names here. You are looking for:
if x == 1 or y == 1 or z == 1:
x and y are otherwise evaluated on their own (False if 0, True otherwise).
You can shorten that using a containment test against a tuple:
if 1 in (x, y, z):
or better still:
if 1 in {x, y, z}:
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pull out p-values and r-squared from a linear regression
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How to print third column to last column?
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Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
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If vs. Switch Speed
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185
The compiler can build jump tables where applicable. For example, when you use the reflector t...
How can I use numpy.correlate to do autocorrelation?
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How to request a random row in SQL?
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751
See this post: SQL to Select a random row from a database table. It goes through methods for doi...
Numpy index slice without losing dimension information
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It's probably easiest to do x[None, 10, :] or equivalently (but more readable) x[np.newaxis, 10, :].
As far as why it's not the default, personally, I find that constantly having arrays with singleton dimensions gets annoying very quickly. I'd guess the nump...
C# LINQ find duplicates in List
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The easiest way to solve the problem is to group the elements based on their value, and then pic...