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Fast check for NaN in NumPy
I'm looking for the fastest way to check for the occurrence of NaN ( np.nan ) in a NumPy array X . np.isnan(X) is out of the question, since it builds a boolean array of shape X.shape , which is potentially gigantic.
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How to execute PHP code from the command line?
... : "no";
no
php >
If it doesn't work on your box like on my box*es* (tested on Ubuntu and Arch), then probably your PHP setup is fuzzy or broken. If you run this command:
php -i | grep 'API'
You should see:
Server API => Command Line Interface
If you don't, this means that maybe anoth...
Asynchronously wait for Task to complete with timeout
...ys cancellation can be experienced in your code, and you should be sure to test for and be confident you properly handle all of them. Don't leave to chance various combinations and hope your computer does the right thing at runtime.
int timeout = 1000;
var task = SomeOperationAsync(cancellationToke...
Reading Xml with XmlReader in C#
...le XML document -->
<Items>
<Item>test with a child element <more/> stuff</Item>
</Items>";
// Create an XmlReader
using (XmlReader reader = XmlReader.Create(new StringReader(xmlString)))
{
XmlWriterSettings w...
When should an IllegalArgumentException be thrown?
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In a nuclear cooling application, I'd rather fail hard in tests than allow a case the programmer thought was impossible to pass unnoticed.
– Louis Wasserman
Mar 4 '13 at 20:09
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How can I set the Secure flag on an ASP.NET Session Cookie?
...Note that this depends on your (server-level) configuration. I brought the Test Region down with the error "The application is configured to issue secure cookies. These cookies require the browser to issue the request over SSL (https protocol). However, the current request is not over SSL." This was...
How to remove specific elements in a numpy array
...nge(len(a))])))
>>> a
array([1, 2, 5, 6, 8, 9])
According to my tests, this outperforms numpy.delete(). I don't know why that would be the case, maybe due to the small size of the initial array?
python -m timeit -s "import numpy as np" -s "import itertools" -s "a = np.array([1,2,3,4,5,6,...
Determine Whether Two Date Ranges Overlap
...StartDate2) notation easier to understand, Range1 is always on left in the tests.
– A.L
Dec 2 '13 at 14:46
9
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What's the Android ADB shell “dumpsys” tool and what are its benefits?
...false, scanModeActive=false
lastSignalLevel=2, explicitlyDisabled=false
Latest scan results:
Locks acquired: 28 full, 0 scan
Locks released: 28 full, 0 scan
Locks held:
3) Getting CPU info
~$ adb shell dumpsys cpuinfo
Output:
Load: 0.08 / 0.4 / 0.64
CPU usage from 42816ms to 34683ms ago:
sy...
Which parallel sorting algorithm has the best average case performance?
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I got an 8 core processor. :) Now I have tested sorting upwards of 40M elements. I am not seeing linear speedup, but I am seeing substantial performance gain over the standard Java 8 Collections sort algorithm, which is supposedly a multi-threadd Timsort. My PSRS im...