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How to select only the first rows for each unique value of a column

...ERE clause – ekanna May 10 '15 at 2:14 3 This is neither allowed for MS-SQL. ...
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Difference between std::result_of and decltype

...a hard error instead of a deduction failure. That has been corrected in C++14: std::result_of is now required to be SFINAE-friendly (thanks to this paper). So on a conforming C++14 compiler, std::result_of_t<F(Args...)> is strictly superior. It's clearer, shorter, and correctly† supports mo...
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Selecting data frame rows based on partial string match in a column

... mpg cyl disp hp drat wt qsec vs am gear carb # Merc 240D 24.4 4 146.7 62 3.69 3.19 20.0 1 0 4 2 # Merc 230 22.8 4 140.8 95 3.92 3.15 22.9 1 0 4 2 # Merc 280 19.2 6 167.6 123 3.92 3.44 18.3 1 0 4 4 # Merc 280C 17.8 6 167.6 123 3.92 3.44 18.9 1 0 ...
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How to resize an image with OpenCV2.0 and Python2.6

... Fabian N. 3,41011 gold badge1919 silver badges4141 bronze badges answered Sep 12 '13 at 14:51 emememem 4,46311 gold badge1717...
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What's the difference between design patterns and architectural patterns?

... pyfuncpyfunc 58.3k1414 gold badges137137 silver badges132132 bronze badges ...
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How to un-commit last un-pushed git commit without losing the changes

...tipovIsantipov 13.1k11 gold badge2121 silver badges4141 bronze badges 5 ...
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Catching multiple exception types in one catch block

...adness that it is. – borfast Apr 2 '14 at 23:31 This should be the accepted answer. Although, it assumes that you are ...
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How do I make sure every glyph has the same width?

...99 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.6924 13.89...
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Create a submodule repository from a folder and keep its git commit history

...g out older commits. – Cybot Feb 3 '14 at 9:44 ...
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How to print to console in pytest?

... answered Jul 7 '14 at 18:55 tbekolaytbekolay 11k33 gold badges3232 silver badges3131 bronze badges ...