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How do I calculate percentiles with python/numpy?
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You might be interested in the SciPy Stats package. It has the percentile function you're after and many other statistical goodies.
percentile() is available in numpy too.
import numpy as np
a = np.array([1,2,3,4,5])
p = np.percentile(a, 50) # return 50th percentile, e.g med...
Calling C/C++ from Python?
... look at Boost.Python. Here is the short introduction taken from their website:
The Boost Python Library is a framework for interfacing Python and
C++. It allows you to quickly and seamlessly expose C++ classes
functions and objects to Python, and vice-versa, using no special
tools -- just...
What is the difference between an ordered and a sorted collection?
...lue of the element. A SortedSet is an example.
In contrast, a collection without any order can maintain the elements in any order. A Set is an example.
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Cleanest way to get last item from Python iterator
What's the best way of getting the last item from an iterator in Python 2.6? For example, say
14 Answers
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How does node.bcrypt.js compare hashed and plaintext passwords without the salt?
From github :
3 Answers
3
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Nearest neighbors in high-dimensional data?
...trieval.
You may be interested in Approximate Nearest Neighbor (ANN) algorithms. The idea is that you allow the algorithm to return sufficiently near neighbors (perhaps not the nearest neighbor); in doing so, you reduce complexity. You mentioned the kd-tree; that is one example. But as you said, kd...
PostgreSQL: How to make “case-insensitive” query
Is there any way to write case-insensitive queries in PostgreSQL, E.g. I want that following 3 queries return same result.
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How to stop a PowerShell script on the first error?
...great for cmdlets).
However for EXEs you're going to need to check $LastExitCode yourself after every exe invocation and determine whether that failed or not. Unfortunately I don't think PowerShell can help here because on Windows, EXEs aren't terribly consistent on what constitutes a "success" or ...
Static extension methods [duplicate]
...omeStringExtension(this string s)
{
//whatever..
}
When you then call it:
myString.SomeStringExtension();
The compiler just turns it into:
ExtensionClass.SomeStringExtension(myString);
So as you can see, there's no way to do that for static methods.
And another thing just dawned on me: w...
Removing an activity from the history stack
My app shows a signup activity the first time the user runs the app, looks like:
15 Answers
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