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Pass column name in data.table using variable [duplicate]

... I already have a gazillion column names in a character vector all there with double quotes around them. How do I get rid of the quotes? – Farrel Jun 28 '16 at 0:23 2 ...
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How can we access context of an application in Robolectric?

Actually, I need to get a response of an API call, for that I required Context . 14 Answers ...
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Select Pandas rows based on list index

...col=0, names=...) This will now return a DataFrame from a file that skips all rows except 1 and 3. Details From the docs: skiprows : list-like or integer or callable, default None ... If callable, the callable function will be evaluated against the row indices, returning True if the row should be...
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Retina displays, high-res background images

...ges/box-bg@2x.png') no-repeat top left / 200px 200px; } However, I personally would not advise using the shorthand form as it is not supported in iOS <= 6 or Android making it unreliable in most situations. share ...
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How to fix the uninitialized constant Rake::DSL problem on Heroku?

...ixed my problems and I didn't know what was going on. (Using the rails installer on windows and deploying to heroku, as a complete beginner.) – Jack V. Jun 14 '11 at 22:46 1 ...
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What happens to a detached thread when main() exits?

..._local) variables of other threads nor static objects. This appears to be allowed to allow thread managers as static objects (note in [basic.start.term]/4 says as much, thanks to @dyp for the pointer). Problems arise when the destruction of static objects has finished, because then execution enter...
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Dependency graph of Visual Studio projects

...pendteam the extra details and screenshots are OK. but since this is originally my answer, it looks like your edit somehow makes me I look like work at NDepend. Please add new answer with your edit, and also emphasize your new answer is addition to my answer. Thanks before :) –...
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How to use PyCharm to debug Scrapy projects

... a virtualenv with Python 3.5.0 and setting the "script" parameter to /path_to_project_env/env/bin/scrapy solved the issue for me. share | improve this answer | follow ...
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How to cast an Object to an int

...ng) object); It can throw a NumberFormatException if your object isn't really a String with an integer as content. Resources : Oracle.com - Autoboxing Oracle.com - Primitive Data types On the same topic : Java: What's the difference between autoboxing and casting? Autoboxing: So I can wri...
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Mock functions in Go

I'm puzzled with dependencies. I want to be able to replace some function calls with mock ones. Here's a snippet of my code: ...