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Algorithm for Determining Tic Tac Toe Game Over
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22 Answers
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How to remove specific elements in a numpy array
...index)
For your specific question:
import numpy as np
a = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9])
index = [2, 3, 6]
new_a = np.delete(a, index)
print(new_a) #Prints `[1, 2, 5, 6, 8, 9]`
Note that numpy.delete() returns a new array since array scalars are immutable, similar to strings in Python...
Is there a ceiling equivalent of // operator in Python?
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edited Sep 14 at 21:47
Machavity♦
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Convert numpy array to tuple
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>>> arr = numpy.array(((2,2),(2,-2)))
>>> tuple(map(tuple, arr))
((2, 2), (2, -2))
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Convert base-2 binary number string to int
I'd simply like to convert a base-2 binary number string into an int, something like this:
8 Answers
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Catching error codes in a shell pipe
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20
If you really don't want the second command to proceed until the first is known to be successfu...
What is the difference between old style and new style classes in Python?
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From New-style and classic classes:
Up to Python 2.1, old-style classes were the only flavour available to the user.
The concept of (old-style) class is unrelated to the concept of type:
if x is an instance of an old-style class, then x.__class__
designates the cla...
What do the numbers in a version typically represent (i.e. v1.9.0.1)?
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28 Answers
28
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Pandas count(distinct) equivalent
...you want:
table.groupby('YEARMONTH').CLIENTCODE.nunique()
Example:
In [2]: table
Out[2]:
CLIENTCODE YEARMONTH
0 1 201301
1 1 201301
2 2 201301
3 1 201302
4 2 201302
5 2 201302
6 3 201302
In [3...