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filter for complete cases in data.frame using dplyr (case-wise deletion)

...data.frame for complete cases using dplyr? complete.cases with a list of all variables works, of course. But that is a) verbose when there are a lot of variables and b) impossible when the variable names are not known (e.g. in a function that processes any data.frame). ...
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Practical non-image based CAPTCHA approaches?

...quite a good idea and is exactly the same as doing it in JavaScript. Good Call. @AviD: I'm aware that this method is prone to direct attacks as I've mentioned on my blog. However, it will defend against your average spam bot which blindly submits rubbish to any form it can find. ...
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Convert Mercurial project to Git [duplicate]

... solution was to just remove hg related files and then git init && add manually the files I needed, but that would not keep the history. Are there any solutions to this? ...
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Secure random token in Node.js

...oding in node is not url-safe, it includes / and + instead of - and _ . Therefore, the easiest way to generate such token I've found is ...
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Why is it not possible to extend annotations in Java?

...n types of arbitrary external programs. Stub generators, for example, fall into this category. These programs will read annotated classes without loading them into the virtual machine, but will load annotation interfaces. So, yes I guess, the reason is it just KISS. Anyway, it seems th...
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Set title background color

...stomTitleBar" android:theme="@style/customTheme" ... From the Activity (called CustomTitleBar) : @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); setContentView(R.layout.main); ...
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google chrome extension :: console.log() from background page?

If I call console.log('something'); from the popup page, or any script included off that it works fine. 11 Answers ...
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Get and Set a Single Cookie with Node.js HTTP Server

...console.log('Server running at http://127.0.0.1:8124/'); This will store all cookies into the cookies object, and you need to set cookies when you write the head. share | improve this answer ...
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can we use xpath with BeautifulSoup?

...thon2, but Python3 is much preferred as 2 is being sunset (no longer officially supported) in 2020. – wordsforthewise Sep 30 '19 at 18:59 ...
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Set Matplotlib colorbar size to match graph

...Has a lot of trouble interacting with subplot_adjust, you have to get the calls in just the right places relative to each other. – Elliot Aug 12 '13 at 22:16 11 ...