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What's the fastest way to merge/join data.frames in R?

....73 0.02 NA NA 1 aggregate 1 14.89 5.298932 14.89 0.00 NA NA 2 data.table 1 132.46 47.138790 131.70 0.08 NA NA 3 plyr 1 212.69 75.690391 211.57 0.56 NA NA ...
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How to create an HTML button that acts like a link?

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Python JSON serialize a Decimal object

... 32 This implementation doesn't work anymore. Elias Zamaria's one is the one working on the same style. – piro ...
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How to pass the value of a variable to the stdin of a command?

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What is a daemon thread in Java?

... Gray 106k2020 gold badges257257 silver badges325325 bronze badges answered Feb 6 '10 at 14:10 b_erbb_erb 19.2k88 gold badge...
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AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?

...ot. – Corey Ogburn Feb 14 '14 at 15:32 2 If your server returns JSON responses, you can look into...
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What's the difference between KeyDown and KeyPress in .NET?

...ress|Up). – P Daddy Mar 7 '14 at 20:32  |  show 1 more comment ...
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pdftk compression option

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How do I copy a version of a single file from one git branch to another?

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How do I break out of nested loops in Java?

... an option. – Zo72 May 16 '12 at 14:32 2 This is better practice I guess, but what happens if you...