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Factors in R: more than an annoyance?
...es and hate apples but don't mind grapes I don't need to manage some weird index to say so:
d <- data.frame(x = rnorm(20), f = sample(c("apples", "oranges", "grapes"), 20, replace = TRUE, prob = c(0.5, 0.25, 0.25)))
d$f <- ordered(d$f, c("apples", "grapes", "oranges"))
d[d$f >= "grapes", ...
Iterate over object attributes in python
...ow I shouldn't.. but it helps me understand how things work. I come from a php background and used to do this kind of things daily
– Pablo Mescher
Jul 24 '12 at 19:01
Mysql adding user for remote access
...NT ALL steps, set mysql.default_port = <private instance port> in my php.ini, and then used 127.0.0.1 throughout for my db hostname
– spex
Sep 11 '13 at 18:41
...
What would be a good docker webdev workflow?
...ev
Main Features
Persistent DB
Your choice of HHVM + NGINX or Apache2 + PHP5
Debug and set breakpoints with xDebug
The README.md should be clear enough to get you started.
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Insert new column into table in sqlite?
...
don't forget to re-create indexes
– Jan Turoň
Apr 6 '14 at 23:20
5
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How to Create Deterministic Guids
...correct and has errata that fixes the C code (rfc-editor.org/errata_search.php?rfc=4122&eid=1352). If this implementation is not fully compliant with RFC4122 and its errata, please provide further details; I would like to make it follow the standard.
– Bradley Grainger
...
How to find a Java Memory Leak
...://www.eclipse.org/mat/ .
What is really cool about this tool is that it indexed the heap dump when I first opened it which allowed it to show data like retained heap without waiting 5 minutes for each object (pretty much all operations were tons faster than the other tools I tried).
When you ope...
Most simple but complete CMake example
...l I want to know is, how should I structure my project, so that my CMake requires the least amount of maintainance in the future. For example, I don't want to update my CMakeList.txt when I am adding a new folder in my src tree, that works exactly like all other src folders.
...
String formatting in Python 3
...next positional argument, with default format;
{0} means the argument with index 0, with default format;
{:d} is the next positional argument, with decimal integer format;
{0:d} is the argument with index 0, with decimal integer format.
There are many others things you can do when selecting an arg...
Class method decorator with self arguments?
...def countdown_decorator(func):
def func_wrapper():
for index in reversed(range(1, number+1)):
print("{}".format(index))
func()
return func_wrapper
return countdown_decorator
class MySuperClass():
def __init__(self, number):
sel...