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Where can I learn how to write C code to speed up slow R functions? [closed]
...:
SEXP foobar(){
SEXP ab;
PROTECT(ab = allocVector(STRSXP, 2));
SET_STRING_ELT( ab, 0, mkChar("foo") );
SET_STRING_ELT( ab, 1, mkChar("bar") );
UNPROTECT(1);
}
Using Rcpp, you can write the same function as:
SEXP foobar(){
return Rcpp::CharacterVector::create( "foo", "bar" ) ;
}
...
How to turn off INFO logging in Spark?
...fect.
– disruptive
Jun 18 '15 at 14:19
Did not work for me. Spark 1.5. RHEL 6. CDH 5.5. Tried creating new file /opt/c...
How to get the last N records in mongodb?
...:-1})
– Justin Jenkins
Mar 6 '12 at 19:11
7
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ExpressJS How to structure an application?
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answered Oct 3 '13 at 21:19
dthreedthree
16.2k99 gold badges6161 silver badges9797 bronze badges
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Python - When to use file vs open
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19
file() is a type, like an int or a list. open() is a function for opening files, and will retur...
Setting WPF image source in code
... accepted!
– Torbjørn
Nov 4 '09 at 19:35
I don't know why this was needed though, and why the other answers didn't wo...
Configuring so that pip install can work from github
...ion asks)
– Rodrigo E. Principe
Feb 19 at 16:43
add a comment
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Array include any value from another array?
...?
– SuckerForMayhem
Mar 4 '16 at 21:19
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The simplest way to resize an UIImage?
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Paul LynchPaul Lynch
19.5k44 gold badges3434 silver badges4141 bronze badges
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Use “ENTER” key on softkeyboard instead of clicking button
...exus 7?
– HairOfTheDog
Sep 5 '13 at 19:24
3
This solution is completely broken on many devices, N...