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Creating an R dataframe row-by-row
...as you need
stringsAsFactors=FALSE) # you don't know levels yet
and then during your operations insert row at a time
DF[i, ] <- list(1.4, "foo")
That should work for arbitrary data.frame and be much more efficient. If you overshot N you can always shrink empty rows...
What is the optimal algorithm for the game 2048?
...code with emscripten to javascript, and it works quite well in the browser now! Cool to watch, without the need to compile and everything... In Firefox, performance is quite good...
– reverse_engineer
Aug 23 '14 at 17:11
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How do I find the location of the executable in C? [duplicate]
...me/where/else/foo # create a hard link to foo
$ /some/where/else/foo
Now, the approach above (including, I suspect, /proc/$pid/exe) will give /some/where/else/foo as the real path to the program. And, in fact, it is a real path to the program, just not the one you wanted. Note that this prob...
How to copy a file to multiple directories using the gnu cp command
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Thanks for the answer! Now that I think about it a bit more, without extra flags (which do not exist) cp will not know what is the source and what is the DEST dir.
– Tom Feiner
Oct 12 '08 at 16:39
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Why are primes important in cryptography?
... public, and everyone can use it to encrypt messages to you, but only you know the prime factors and can decrypt the messages. Everyone else would have to factor the number, which takes too long to be practical, given the current state of the art of number theory.
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Adding a directory to the PATH environment variable in Windows
... It is theoretically possible, no practical CRT implementation I know of actually does this. Explorer does.
– Hans Passant
Jun 21 '16 at 16:35
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JS: iterating over result of getElementsByClassName using Array.forEach
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@TimDown, Thanks for HTMLCollection tip. Now I finally can use HTMLCollection.prototype.forEach = Array.prototype.forEach; in my code.
– Maksim Vi.
Jan 21 '15 at 23:31
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How to use multiple @RequestMapping annotations in spring?
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Also I would like to know, how do I know which requestmapping has been called. is it / or welcome ?
– Siddharth
Aug 30 '17 at 10:53
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OpenSSL and error in reading openssl.conf file
...bles in Windows NT and How To Manage Environment Variables in Windows XP.
Now you can run openssl commands without having to pass the config location parameter.
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Any reason why scala does not explicitly support dependent types?
...w that Scala is a lot closer to these other languages than is typically acknowledged.
Despite the terminology, dependent sum types (also known as Sigma types) are simply a pair of values where the type of the second value is dependent on the first value. This is directly representable in Scala,
sc...