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What is the _snowman param in Ruby on Rails 3 forms for?
...wer IE versions, too?
– Philipp
Jul 11 '10 at 8:24
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For a more lengthy response, please take a l...
How to upgrade Eclipse for Java EE Developers?
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edited Sep 13 '17 at 11:43
answered Jun 27 '13 at 7:55
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what is the difference between sendStickyBroadcast and sendBroadcast in Android
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CommonsWareCommonsWare
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What is the best way to use a HashMap in C++?
...th unordered_map).
The unordered_map container was introduced with the C++11 standard revision. Thus, depending on your compiler, you have to enable C++11 features (e.g. when using GCC 4.8 you have to add -std=c++11 to the CXXFLAGS).
Even before the C++11 release GCC supported unordered_map - in t...
mongodb group values by multiple fields
...addr": "address5", "book": "book1" }
{ "addr": "address77", "book": "book11" }
{ "addr": "address1", "book": "book1" }
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how to use “AND”, “OR” for RewriteCond on Apache?
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answered Jul 22 '15 at 19:11
SjonSjon
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How to bind multiple values to a single WPF TextBlock?
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Justin
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answered Mar 31 '10 at 12:42
Richard McGuireRichard McGuire
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Efficient way to apply multiple filters to pandas DataFrame or Series
...numpy) allow for boolean indexing, which will be much more efficient:
In [11]: df.loc[df['col1'] >= 1, 'col1']
Out[11]:
1 1
2 2
Name: col1
In [12]: df[df['col1'] >= 1]
Out[12]:
col1 col2
1 1 11
2 2 12
In [13]: df[(df['col1'] >= 1) & (df['col1'] <=1 )]
Out...
Twig for loop for arrays with keys
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GuillaumeGuillaume
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Why does multiprocessing use only a single core after I import numpy?
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WoJWoJ
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