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What is the 'pythonic' equivalent to the 'fold' function from functional programming?
...duce with non-associative operators is considered bad style.
Using higher-order functions is quite pythonic; it makes good use of Python's principle that everything is an object, including functions and classes. You are right that lambdas are frowned upon by some Pythonistas, but mostly because the...
Vertically align text next to an image?
...>
</div>
If you must support ancient versions of IE <= 7
In order to get this to work correctly across the board, you'll have to hack the CSS a bit. Luckily, there is an IE bug that works in our favor. Setting top:50% on the container and top:-50% on the inner div, you can achieve the...
Should I add the Visual Studio .suo and .user files to source control?
...annoyance is that the debug parameters (execution path, deployment target, etc.) are stored in one of those files (don't know which), so if you have a standard for them you won't be able to 'publish' it via SCM for other developers to have the entire development environment 'ready to use'.
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Pass a data.frame column name to a function
...1(df, "B")
fun1(df, c("B","A"))
There's no need to use substitute, eval, etc.
You can even pass the desired function as a parameter:
fun1 <- function(x, column, fn) {
fn(x[,column])
}
fun1(df, "B", max)
Alternatively, using [[ also works for selecting a single column at a time:
df <- ...
What does the tilde before a function name mean in C#?
...nce is destructed, the destructors in its inheritance chain are called, in order, from most derived to least derived.
Finalize
In C#, the Finalize method performs the operations that a standard C++ destructor would do. In C#, you don't name it Finalize -- you use the C++ destructor syntax of pla...
Why does one often see “null != variable” instead of “variable != null” in C#?
In c#, is there any difference in the excecution speed for the order in which you state the condition?
9 Answers
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no acceptable C compiler found in $PATH when installing python
... the methods of installing build-essential, which contains gcc, g++, make, etc.
– Spectral
Jul 9 '14 at 20:06
2
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What exactly is Python's file.flush() doing?
...your machine, that data is not on disk when the machine turns off.
So, in order to help with that you have the flush and fsync methods, on their respective objects.
The first, flush, will simply write out any data that lingers in a program buffer to the actual file. Typically this means that the d...
What's the simplest way to subtract a month from a date in Python?
...) Out[23]: datetime.datetime(2016, 11, 29, 0, 0, tzinfo=<StaticTzInfo 'Etc/GMT-8'>) In [24]: created_datetime__lt - relativedelta(month=1) Out[24]: datetime.datetime(2016, 1, 29, 0, 0, tzinfo=<StaticTzInfo 'Etc/GMT-8'>)
– Simin Jie
Dec 29 '16 at ...
How do I scale a stubborn SVG embedded with the tag?
... You can also do preserveAspectRatio="none" if you want to stretch the svg out in arbitrary ways.
– Matt Crinklaw-Vogt
Oct 7 '13 at 19:18
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