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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?
...wness and Kurtosis (along the lines of the variance), see in the same wiki page here the parallel algorithms for higher-moment statistics.
Median
Median is tough without sorted data. If you know, how many data points you have, in theory you only have to partially sort, e.g. by using a selection al...
How to check if a user is logged in (how to properly use user.is_authenticated)?
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Update for Django 1.10+:
is_authenticated is now an attribute in Django 1.10.
The method was removed in Django 2.0.
For Django 1.9 and older:
is_authenticated is a function. You should call it like
if request.user.is_authentic...
How to strip all non-alphabetic characters from string in SQL Server?
How could you remove all characters that are not alphabetic from a string?
18 Answers
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How do you reverse a string in place in C or C++?
How do you reverse a string in C or C++ without requiring a separate buffer to hold the reversed string?
30 Answers
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ProcessStartInfo hanging on “WaitForExit”? Why?
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The problem is that if you redirect StandardOutput and/or StandardError the internal buffer can become full. Whatever order you use, there can be a problem:
If you wait for the process to exit before reading StandardOutput the ...
What is the difference between HTML tags and ?
I would like to ask for some simple examples showing the uses of <div> and <span> . I've seen them both used to mark a section of a page with an id or class , but I'm interested in knowing if there are times when one is preferred over the other.
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git diff file against its last change
Is it possible to get git to produce a diff between a specific file as it exists now, and as it existed before the last commit that changed it?
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Rails render partial with block
I'm trying to re-use an html component that i've written that provides panel styling. Something like:
5 Answers
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How to output only captured groups with sed?
Is there any way to tell sed to output only captured groups? For example given the input:
8 Answers
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What's the pythonic way to use getters and setters?
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Try this: Python Property
The sample code is:
class C(object):
def __init__(self):
self._x = None
@property
def x(self):
"""I'm the 'x' property."""
print("getter of x called")
return self...