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Pandas count(distinct) equivalent
...This is the incorrect answer; it does not reflect the DISTINCT requirement from the question! Moreover, it does not include counts of NaN!
– Corey Levinson
Jan 23 '19 at 20:03
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Convert JavaScript string in dot notation into an object reference
...erencing them). Like asking "how can I look up a function or variable name from a string".
This is bad programming practice (unnecessary metaprogramming specifically, and kind of violates function side-effect-free coding style, and will have performance hits). Novices who find themselves in ...
Priority queue in .Net [closed]
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You might like IntervalHeap from the C5 Generic Collection Library. To quote the user guide
Class IntervalHeap<T> implements interface IPriorityQueue<T> using an interval heap stored as an array of pairs. The FindMin and
FindMax operations,...
Find Results not displaying Results
... That helped me.
To make sure it won't disappear I'm copying the solution from Martin Rosselle here:
Please check if the following registry key is ok. Fixing this solved the issue for me.
Copy the text below and save it as .reg file.
Go to regedit.exe and import saved .reg file or simply open t...
Virtual Serial Port for Linux
...y ("pseudo-teletype", where a serial port is a "real teletype") for this. From one end, open /dev/ptyp5, and then attach your program to /dev/ttyp5; ttyp5 will act just like a serial port, but will send/receive everything it does via /dev/ptyp5.
If you really need it to talk to a file called /dev/...
What are the differences between ipython and bpython?
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A whole parallel programming environment (not really a feature you expect from an interactive Python shell, but IPython offers it).
This list could be nearly arbitrarily continued. And of course there will be lots of features in bpython lacking from IPython, but you did not ask for those.
So ju...
What Are the Differences Between PSR-0 and PSR-4?
...beneficial. I'm currently creating a project in Laravel and trying to move from class map autoloading to namespacing. However, I can't seem to grasp what the actual difference is between PSR-0 and PSR-4.
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Can I get Memcached running on a Windows (x64) 64bit environment?
... so people know, the 32-bit and 64-bit version as build by the good people from membase/couchbase/whatever is still available the blog URL has changed though:
32-bit binary of memcached 1.4.4 as Windows-service:
http://blog.couchbase.com/memcached-144-windows-32-bit-binary-now-available
http://s3...
Verifying that a string contains only letters in C#
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Just to save people like me from one more search, Regex is in the System.Text.RegularExpressions Namespace
– Eric Barr
Mar 19 '14 at 13:51
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How to export JavaScript array info to csv (on client side)?
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From what I know, there isn't a way to do that using window.open. However, you can create a hidden link that has a download attribute set to the file name you desire. Then "clicking" this link will download the file in the na...