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Simple way to calculate median with MySQL
What's the simplest (and hopefully not too slow) way to calculate the median with MySQL? I've used AVG(x) for finding the mean, but I'm having a hard time finding a simple way of calculating the median. For now, I'm returning all the rows to PHP, doing a sort, and then picking the middle row, but ...
What is a singleton in C#?
What is a Singleton and when should I use it?
16 Answers
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Selecting the last value of a column
...spreadsheet with some values in column G. Some cells are empty in between, and I need to get the last value from that column into another cell.
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How to delete a file or folder?
...os.rmdir() removes an empty directory.
shutil.rmtree() deletes a directory and all its contents.
Path objects from the Python 3.4+ pathlib module also expose these instance methods:
pathlib.Path.unlink() removes a file or symbolic link.
pathlib.Path.rmdir() removes an empty directory.
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Consequences of using graft in Mercurial
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When you update to D and graft F::J, Mercurial runs a number of merges. It will start with this merge:
M = three_way_merge(local=D, other=F, base=E)
If we write +d for the delta between the states C and D, then we start with:
+d +...
What is the use of “assert” in Python?
I have been reading some source code and in several places I have seen the usage of assert .
21 Answers
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Rails migrations: self.up and self.down versus change
Looks like the new rails version has "change" versus self.up and self.down methods.
3 Answers
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How to do relative imports in Python?
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I don't understand: where is the answer here? How can one import modules in such a directory structure?
– Tom
Sep 29 '12 at 16:34
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How to split a delimited string into an array in awk?
...v 4 '11 at 13:15
Calin Paul AlexandruCalin Paul Alexandru
3,48422 gold badges1616 silver badges1919 bronze badges
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How to get the url parameters using AngularJS
...o sort this out given the sparse Angular documentation. The RouteProvider and routeParams is the way to go. The route wires up the URL to your Controller/View and the routeParams can be passed into the controller.
Check out the Angular seed project. Within the app.js you'll find an example for ...