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How do I change the background color of a plot made with ggplot2
...lt, ggplot2 produces plots with a grey background. How do I change the color of the background of the plot?
3 Answers
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What does $1 [QSA,L] mean in my .htaccess file?
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Not the place to give a complete tutorial, but here it is in short;
RewriteCond basically means "execute the next RewriteRule only if this is true". The !-l path is the condition that the request is not for a link (! means not, -l means link)
The RewriteRule ...
Deleting Files using Git/GitHub
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@KimPrince - According to kernel.org, "-A --all Like -u, but match <filepattern> against files in the working tree in addition to the index. That means that it will find new files as well as staging modified content and removing files ...
Usage of @see in JavaDoc?
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Yeah, it is quite vague.
You should use it whenever for readers of the documentation of your method it may be useful to also look at some other method. If the documentation of your methodA says "Works like methodB but ...", then you surely should put a link.
An alternative to @...
ASP.NET Web API OperationCanceledException when browser cancels the request
When a user loads a page, it makes one or more ajax requests, which hit ASP.NET Web API 2 controllers. If the user navigates to another page, before these ajax requests complete, the requests are canceled by the browser. Our ELMAH HttpModule then logs two errors for each canceled request:
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Unix shell script to truncate a large file
... no-op in bash (POSIX-compliant), so this essentially just opens the file for writing (which of course truncates the file) and then immediately closes it.
EDIT: as shellter commented, you don't actually need a command to go along with the redirection:
$ echo foo > foo.txt
$ cat foo.txt
foo
$ &g...
What is a “cache-friendly” code?
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Preliminaries
On modern computers, only the lowest level memory structures (the registers) can move data around in single clock cycles. However, registers are very expensive and most computer cores have less than a few dozen registers. At the other end of the memory spectrum (DRAM), ...
Why is there a `null` value in JavaScript?
... really "why is there a null value in JS" - there is a null value of some sort in most languages and it is generally considered very useful.
The question is, "why is there an undefined value in JS". Major places where it is used:
when you declare var x; but don't assign to it, x holds undefined;
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How can I make PHP display the error instead of giving me 500 Internal Server Error [duplicate]
This has never happened before. Usually it displays the error, but now it just gives me a 500 internal server error. Of course before, when it displayed the error, it was different servers. Now I'm on a new server (I have full root, so if I need to configure it somewhere in the php.ini, I can.) Or p...
Can't pickle when using multiprocessing Pool.map()
I'm trying to use multiprocessing 's Pool.map() function to divide out work simultaneously. When I use the following code, it works fine:
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