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Remove duplicated rows using dplyr
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@dotcomken Until then could also just use df %>% group_by(x, y) %>% do(head(.,1))
– Holger Brandl
Jul 23 '14 at 11:53
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How to send objects through bundle
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Figuring out what path to take requires answering not only CommonsWare's key question of "why" but also the question of "to what?" are you passing it.
The reality is that the only thing that can go through bundles is plain data - everything else is based on interpretations of what t...
Adding images or videos to iPhone Simulator
... images, videos, etc onto the simulator is to drag and drop them from your computer onto the simulator. This will cause the Simulator to open the Photos app and start populating the library.
If you want a scriptable method, read on.
Note - while this is valid, and works, I think Koen's solution ...
Reverting part of a commit with git
I want to revert a particular commit in git. Unfortunately, our organization still uses CVS as a standard, so when I commit back to CVS multiple git commits are rolled into one. In this case I would love to single out the original git commit, but that is impossible.
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Initializing a member array in constructor initializer
...his kind of thing. I'm not exactly sure about the following case, but some compilers do allow it.
struct A {
char foo[6];
A():foo("hello") { } /* valid? */
};
See this GCC PR for further details.
Do C++0x initializer lists solve the problem?
Yes, they do. However your syntax is invali...
How can I profile Python code line-by-line?
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Here's the decorator I wrote: gist.github.com/kylegibson/6583590. If you're running nosetests, be sure to use the -s option so stdout is printed immediately.
– Kyle Gibson
Sep 16 '13 at 17:14
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How can I use an http proxy with node.js http.Client?
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var options = {
host: "proxy",
port: 8080,
path: "http://www.google.com",
headers: {
Host: "www.google.com"
}
};
http.get(options, function(res) {
console.log(res);
res.pipe(process.stdout);
});
For the record his answer does work with http://nodejs.org/ but that's because their...
Is a GUID unique 100% of the time?
...ow you could get the same guid in the right situation.
https://ericlippert.com/2012/04/24/guid-guide-part-one/
https://ericlippert.com/2012/04/30/guid-guide-part-two/
https://ericlippert.com/2012/05/07/guid-guide-part-three/
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How to include route handlers in multiple files in Express?
In my NodeJS express application I have app.js that has a few common routes. Then in a wf.js file I would like to define a few more routes.
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How to trim leading and trailing white spaces of a string?
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