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Efficient way to apply multiple filters to pandas DataFrame or Series

...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[13]: col1 col2 1 1 11 If you want to write helper functions for t...
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C# version of java's synchronized keyword?

... answered Feb 12 '09 at 14:00 Marc Gravell♦Marc Gravell 888k227227 gold badges23562356 silver badges27202720 bronze badges ...
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Create whole path automatically when writing to a new file

... Jon SkeetJon Skeet 1210k772772 gold badges85588558 silver badges88218821 bronze badges ...
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String Concatenation using '+' operator

... | edited Apr 26 '12 at 20:51 answered Apr 26 '12 at 20:47 ...
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How to get Scala List from Java List?

... EDIT: Note that this is deprecated since 2.12.0. Use JavaConverters instead. (comment by @Yaroslav) Since Scala 2.8 this conversion is now built into the language using: import scala.collection.JavaConversions._ ... lst.toList.foreach{ node => .... } works. as...
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Downloading a large file using curl

... Defend your comment @yes123, I'm interested to know. – Jürgen Paul Aug 7 '12 at 5:24 8 ...
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Selector on background color of TextView

... 122 Benoit's solution works, but you really don't need to incur the overhead to draw a shape. Sinc...
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Merging without whitespace conflicts

... | edited May 23 '17 at 12:26 Community♦ 111 silver badge answered Mar 20 '12 at 9:21 ...
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cout is not a member of std

... answered Jul 7 '12 at 14:45 unkulunkuluunkulunkulu 10.1k22 gold badges2626 silver badges4646 bronze badges ...
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Should I use @EJB or @Inject

... | edited May 23 '17 at 12:10 Community♦ 111 silver badge answered Nov 15 '11 at 15:08 ...