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detach all packages while working in R
...fo()
R version 2.13.1 Patched (2011-09-13 r57007)
Platform: x86_64-unknown-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_GB.utf8 LC_NUMERIC=C
[3] LC_TIME=en_GB.utf8 LC_COLLATE=en_GB.utf8
[5] LC_MONETARY=C LC_MESSAGES=en_GB.utf8
[7] LC_PAPER=en_GB.utf8 ...
java.net.URLEncoder.encode(String) is deprecated, what should I use instead?
...thods. It would take the same amount of effort to type either. If you like Python, why are you programming in Java? Is it because more people use Java than Python and you got a Java job instead of Python job?
– stepanian
Feb 27 '12 at 9:07
...
How does functools partial do what it does?
...or keyword argument 'a'
another use case: writing distributed code using python's multiprocessing library. A pool of processes is created using the Pool method:
>>> import multiprocessing as MP
>>> # create a process pool:
>>> ppool = MP.Pool()
Pool has a map method,...
How to find out if an installed Eclipse is 32 or 64 bit version?
...
In Linux, run file on the Eclipse executable, like this:
$ file /usr/bin/eclipse
eclipse: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.4.0, not stripped
...
How do I close a connection early?
...ion is to fork a background process. It is fairly straight forward on unix/linux:
<?php
echo "We'll email you as soon as this is done.";
system("php somestuff.php dude@thatplace.com >/dev/null &");
?>
You should look at this question for better examples:
PHP execute a background p...
what is reverse() in Django
...yers where URLs are needed: In templates: Using the url
template tag. In Python code: Using the reverse() function. In higher
level code related to handling of URLs of Django model instances: The
get_absolute_url() method.
Eg. in templates (url tag)
<a href="{% url 'news-year-archive' 20...
AtomicInteger lazySet vs. set
...
http://hg.openjdk.java.net/jdk7/jdk7/hotspot/file/4fc084dac61e/src/os_cpu/linux_x86/vm/orderAccess_linux_x86.inline.hpp
you can also use the hdis to disassemble the lazySet code's assembly in action.
There is another related question:
Do we need mfence when using xchg
...
NSLog/printf specifier for NSInteger?
...long long. Try man printf on the console, but on Mac it is incomplete. The linux manpages are more explicit http://www.manpages.info/linux/sprintf.3.html
Both warnings can only be fixed by NSLog(@"%lu", (unsigned long)arg); combined with a cast as the code will be compiled in 32 AND 64 bit for iOS....
Numpy: Divide each row by a vector element
...
Pythonic way to do this is ...
np.divide(data.T,vector).T
This takes care of reshaping and also the results are in floating point format.
In other answers results are in rounded integer format.
#NOTE: No of columns in bot...
How to know what the 'errno' means?
...f("Oh dear, something went wrong with read()! %s\n", strerror(errno));
}
Linux also supports the explicitly-threadsafe variant strerror_r().
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