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Python group by

... answered Nov 2 '16 at 5:06 akivaakiva 2,32833 gold badges2525 silver badges3737 bronze badges ...
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Forward declaring an enum in C++

...ave it :( – rubenvb Dec 9 '10 at 16:06 4 @rubenvb So does Visual C++ 11 (2012) blogs.msdn.com/b/v...
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SQL select join: is it possible to prefix all columns as 'prefix.*'?

...d working well. – glihm Jul 24 at 3:06 add a comment  |  ...
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Summarizing multiple columns with dplyr? [duplicate]

...1 #> 2 2 3.03 3.04 2.97 2.87 #> 3 3 2.85 2.95 2.95 3.06 If you want to summarize only certain columns, use summarise_at or summarise_if functions. Alternatively, the purrrlyr package provides the same functionality: library(purrrlyr) df %>% slice_rows("grp") %>% dmap(mea...
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Exception messages in English?

... user461128user461128 89066 silver badges55 bronze badges 5 ...
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Manipulate a url string by adding GET parameters

... answered Apr 27 '11 at 20:06 Tom ClausTom Claus 1,16111 gold badge66 silver badges1313 bronze badges ...
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Can PNG image transparency be preserved when using PHP's GDlib imagecopyresampled?

... – santiago arizti Apr 13 '17 at 20:06 ...
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PHP Fatal error: Using $this when not in object context

...| edited Feb 28 '10 at 12:06 answered Feb 28 '10 at 11:58 P...
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Getting value of public static final field/property of a class in Java via reflection

... answered Apr 21 '10 at 18:06 M. JessupM. Jessup 7,59811 gold badge2222 silver badges2929 bronze badges ...
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Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]

... you. – Ollie Glass Aug 2 '11 at 12:06 1 I'm a big fan of @Guffa's answer too - in the words of l...