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How to get the primary IP address of the local machine on Linux and OS X? [closed]
...ould return me the primary (first) IP address of the localhost, other than 127.0.0.1
31 Answers
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Pandas dataframe get first row of each group
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>>> df.groupby('id').first()
value
id
1 first
2 first
3 first
4 second
5 first
6 first
7 fourth
If you need id as column:
>>> df.groupby('id').first().reset_index()
id value
0 1 first
1 2 first
2 3 first
3 4 seco...
is it possible to evenly distribute buttons across the width of an android linearlayout
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19 Answers
19
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How do I force make/GCC to show me the commands?
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edited Jan 8 '17 at 4:43
Steven Penny
76.1k4545 gold badges296296 silver badges336336 bronze badges
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Open Redis port for remote connections
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219
Did you set the bind option to allow remote access on the redis server?
Before (file /etc/redi...
How may I sort a list alphabetically using jQuery?
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10 Answers
10
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What's the function like sum() but for multiplication? product()?
...ort operator
def prod(iterable):
return reduce(operator.mul, iterable, 1)
>>> prod(range(1, 5))
24
Note, in Python 3, the reduce() function was moved to the functools module.
Specific case: Factorials
As a side note, the primary motivating use case for prod() is to compute factorials....
How to normalize a NumPy array to within a certain range?
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140
audio /= np.max(np.abs(audio),axis=0)
image *= (255.0/image.max())
Using /= and *= allows yo...
Find index of last occurrence of a substring in a string
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answered Mar 5 '12 at 19:15
Rik PoggiRik Poggi
23.7k66 gold badges5858 silver badges7878 bronze badges
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Return Boolean Value on SQL Select Statement
...STS (
SELECT *
FROM [User]
WHERE UserID = 20070022
)
THEN CAST(1 AS BIT)
ELSE CAST(0 AS BIT) END
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