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Where can I learn how to write C code to speed up slow R functions? [closed]
...can judge for yourself what you find more complicated, obfuscated, etc ... based on a few examples. This function creates a character vector using the C API:
SEXP foobar(){
SEXP ab;
PROTECT(ab = allocVector(STRSXP, 2));
SET_STRING_ELT( ab, 0, mkChar("foo") );
SET_STRING_ELT( ab, 1, mkChar(...
“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl
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That fixed my issue on Ubuntu 12.04 (x64) and Python3.4 installed
– Ilia Shakitko
Dec 17 '14 at 11:13
23
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Any way to properly pretty-print ordered dictionaries?
... structures and lists just fine. I used the Mapping and Iterable abstract base classes from collections to handle just about anything.
I was aiming for almost yaml like output with concise python code, but didn't quite make it.
def format_structure(d, level=0):
x = ""
if isinstance(d, Map...
Stop pip from failing on single package when installing with requirements.txt
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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What is the combinatory logic equivalent of intuitionistic type theory?
...erms to Combinators
And with that done, we acquire the usual translation, based on bracket abstraction.
tm :: Tm a -> Unty a
tm (Var a) = V a
tm (Lam _ b) = bra (tm b)
tm (f :$ a) = tm f :. tm a
tm (Pi a b) = C P :. tm a :. tm b
tm Set = C U
bra :: Unty (Su a) -> Unty a ...
How do I get the function name inside a function in PHP?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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MSTest copy file to test run folder
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Project structure for Google App Engine
... app
lib
__init__.py - common functionality, including a request handler base class
controllers - contains all the handlers. request.yaml imports these.
templates
all the django templates, used by the controllers
model
all the datastore model classes
static
static files (css, images, etc)...
Rename multiple files in a directory in Python [duplicate]
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Here's a script based on your newest comment.
#!/usr/bin/env python
from os import rename, listdir
badprefix = "cheese_"
fnames = listdir('.')
for fname in fnames:
if fname.startswith(badprefix*2):
rename(fname, fname.replace(...
Forward declaration of nested types/classes in C++
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In C++11 you can inherit constructors by using basename::basename; in the derived class, thus no problem with complicated ctors.
– Xeo
Nov 7 '11 at 1:27
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