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Aggregate / summarize multiple variables per group (e.g. sum, mean)

...m) # year month x1 x2 1 2000 1 -80.83405 -224.9540159 2 2000 2 -223.76331 -288.2418017 3 2000 3 -188.83930 -481.5601913 4 2000 4 -197.47797 -473.7137420 5 2000 5 -259.07928 -372.4563522 ...
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Array initializing in Scala

... answered Mar 15 '12 at 11:10 Martin KonicekMartin Konicek 31.5k1919 gold badges7676 silver badges8989 bronze badges ...
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Loading custom configuration files

...hing after config.? – Svish Jan 16 '15 at 13:27 4 @Oliver Got around to try now, and seems to wor...
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super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh

...best option. – steveha Jul 9 '18 at 15:30 I have the same issue, but my base class is declared like class B(object):. ...
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All but last element of Ruby array

...hat third .? – Joshua Pinter Apr 1 '15 at 18:46 5 ... means not including the last item, The -1 i...
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Laravel - Eloquent or Fluent random row

... 15 Answers 15 Active ...
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How can I get Docker Linux container information from within the container itself?

... 15 Had to tweak it a bit, this works for me in Docker 1.4.1 cat /proc/self/cgroup | grep "docker" | sed s/\\//\\n/g | tail -1 ...
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How to modify PATH for Homebrew?

... | edited Nov 15 '13 at 4:18 answered Apr 27 '12 at 2:08 ...
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Github: Import upstream branch into fork

... | edited Jan 26 '18 at 15:43 answered Dec 10 '10 at 15:42 ...
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How to get a enum value from string in C#?

... | edited Oct 19 '15 at 19:33 answered Oct 16 '09 at 15:25 ...