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How to install 2 Anacondas (Python 2 and 3) on Mac OS
...ust installed XCode (for c++ compiler) and Anaconda with the latest Python 3 (for myself). Now I'm wondering how to install properly second Anaconda (for work) with Python 2?
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How to add an empty column to a dataframe?
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463
If I understand correctly, assignment should fill:
>>> import numpy as np
>>>...
Selecting with complex criteria from pandas.DataFrame
...nt(1, 9)*100 for x in range(10)]})
>>> df
A B C
0 9 40 300
1 9 70 700
2 5 70 900
3 8 80 900
4 7 50 200
5 9 30 900
6 2 80 700
7 2 80 400
8 5 80 300
9 7 70 800
We can apply column operations and get boolean Series objects:
>>> df["B"] > 50
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How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?
... tends to be quite verbose in the (dev) log by default under Ruby on Rails 3.1 (RC1):
14 Answers
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How to remove multiple indexes from a list at the same time? [duplicate]
...nce.
If you have an arbitrary collection of indexes, then:
indexes = [2, 3, 5]
for index in sorted(indexes, reverse=True):
del my_list[index]
Note that you need to delete them in reverse order so that you don't throw off the subsequent indexes.
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Best way to format integer as string with leading zeros? [duplicate]
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You can use the zfill() method to pad a string with zeros:
In [3]: str(1).zfill(2)
Out[3]: '01'
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Datatype for storing ip address in SQL Server
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130
The technically correct way to store IPv4 is binary(4), since that is what it actually is (no, ...
How to get subarray from array?
I have var ar = [1, 2, 3, 4, 5] and want some function getSubarray(array, fromIndex, toIndex) , that result of call getSubarray(ar, 1, 3) is new array [2, 3, 4] .
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Exif manipulation library for python [closed]
... huon
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answered Apr 19 '09 at 13:21
Paolo BergantinoPaolo Bergantino
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Evenly space multiple views within a container view
...at it worked.
Duh 2: The 'spacer views' could have been transparent.
Duh 3: This approach could be applied horizontally.
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