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ggplot2 keep unused levels barplot
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Does this do what you want?
ggplot(df, aes(x=type)) + geom_bar() + scale_x_discrete(drop=FALSE)
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What is “rvalue reference for *this”?
...type of *this never changes" You maybe should be a little clearer that it doesn't change based on r/l-value qualification. but it can change between const/non-const.
– xaxxon
Nov 13 '16 at 11:30
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How can I use vim to convert my file to utf8?
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The instructions turn out to work fine, but: 1) utf-8 doesn't have endianness (like vim help explains, the utf-8 BOM merely indicates that the file is utf-8); 2) When you open the file again later, you need to have set fileencoding=utf-8 again up front. Vim doesn't even notice t...
Dependent DLL is not getting copied to the build output folder in Visual Studio
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@MikeK Adding it to the main project (which doesn't actually directly depend on it) is an even bigger hack, imo. Then you have to manage it two places ("manage" as in upgrade or remove). With this hack, at least you get a nice compile time error reminding you to remove...
What is SaaS, PaaS and IaaS? With examples
...t. You can find more here. It is just a distributed computing platform and does not fall into any of these service models, IMHO.
Microsoft's Windows Azure is again an example of IaaS.
As far as popularity of these services is concerned, they all are popular. It's just that which one fits into your...
Why should I declare a virtual destructor for an abstract class in C++?
...xed the poor wording of my answer now. it states it explicitly now that it doesn't rely on the clients. actually i thought that's obvious that relying on clients doing something is out the way anyway. thanks :)
– Johannes Schaub - litb
Nov 28 '08 at 20:56
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How do I add custom field to Python log format string?
...operations, and the technique should only be used when the use of a Filter does not provide the desired result.
– steve0hh
Jun 19 at 16:58
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Relative imports in Python 2.7
...g that file from somewhere else. Just knowing what directory a file is in does not determine what package Python thinks it is in. That depends, additionally, on how you load the file into Python (by running or by importing).
There are two ways to load a Python file: as the top-level script, or as...
Python's os.makedirs doesn't understand “~” in my path
...ed tilde expansion and is a common user interface feature. The file system does not know anything about it.
In Python, this feature is implemented by os.path.expanduser:
my_dir = os.path.expanduser("~/some_dir")
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Why use pip over easy_install? [closed]
...ude readline in a way that easy_install knows how to kludge around but pip doesn't, so you also want to sudo easy_install readline if you want to upgrade that.
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