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Multiple aggregations of the same column using pandas GroupBy.agg()
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Merge branch with trunk
...ge the branch into the working copy (SVN Merge)
Make sure everything still compiles and works
Commit the working copy (the trunk)
Consider killing the branch
In a team environment I would suggest that you first merge the latest modifications from the trunk in your branch, make sure that everything...
What is “origin” in Git?
... see what URL belongs to each remote by using
git remote -v
In the push command, you can use remotes or you can simply use a URL directly. An example that uses the URL:
git push git@github.com:git/git.git master
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Foreign Key to non-primary key
... Related to your last question... I have a situation where I'd like composite candidate keys to be the primary key just because it semantically has more importance and describes my model best. I too would like to have a foreign key reference a newly created surrogate key for the sake of perf...
Why does Convert.ToString(null) return a different value if you cast null?
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There are 2 overloads of ToString that come into play here
Convert.ToString(object o);
Convert.ToString(string s);
The C# compiler essentially tries to pick the most specific overload which will work with the input. A null value is convertible to any reference...
What does the line “#!/bin/sh” mean in a UNIX shell script?
...script, because false returns immediately anyways.
It's implemented as a comment so that anything coming in that line will not "relevant" to the interpreter specified. e.g. all scripting languages tend to understand that a line starting with # is a comment, and will ignore the !/usr/bin/whatever p...
Configure Sublime Text on OS X to show full directory path in title bar
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Use dynamic variable names in JavaScript
... If you need to access nested properties check out stackoverflow.com/questions/4244896/…
– Mr Br
Jun 22 '15 at 8:12
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My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())
...you do have an expression within then it is valid. For example:
((0));//compiles
Even simpler put: because (x) is a valid C++ expression, while () is not.
To learn more about how languages are defined, and how compilers work, you should learn about Formal language theory or more specifically ...
Using the slash character in Git branch name
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