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Applying a function to every row of a table using dplyr?

...it reflects the fact that when you're doing row wise operations you're actually working with tuples from a list of vectors (the columns in a dataframe). share | improve this answer | ...
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Does a favicon have to be 32x32 or 16x16?

...recommendation should be to provide a 32x32 icon, skipping 16x16 entirely. All current browsers and devices support 32x32 icons. The icon will routinely be upscaled to as much as 192x192 depending on the environment (assuming there are no larger sizes available or the system didn't recognize them). ...
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Testing two JSON objects for equality ignoring child order in Java

...ary that supports comparing two JSON objects ignoring child order, specifically for unit testing JSON returning from a web service. ...
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java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger for JUnit test case for Java mail

... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
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How do you configure Django for simple development and deployment?

...leased which is probably a better option for most people than doing it manually. If you would prefer to do things manually, my earlier answer still applies: I have multiple settings files. settings_local.py - host-specific configuration, such as database name, file paths, etc. settings_developme...
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Merging objects (associative arrays)

... with jquery you can call $.extend var obj1 = {a: 1, b: 2}; var obj2 = {a: 4, c: 110}; var obj3 = $.extend(obj1, obj2); obj1 == obj3 == {a: 4, b: 2, c: 110} // Pseudo JS (assoc. arrays are objects in js) look here: http://api.jquery.com/jQu...
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How can you speed up Eclipse?

...nds, in Kepler SR2 (4.3.2) in 7 seconds and in Luna (4.4.0) in 10 seconds. All are Java EE bundles. Newer versions have more bundled plugins, but still the trend is obvious. (by "same" workspace I mean: same (additionally installed) plugins used, same projects checked out from version control). La...
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How do I find an element that contains specific text in Selenium Webdriver (Python)?

... Thanks... so that helps distinguish inner from outer, but that actually works fine with xpath, I was only having that problem iterating through all the divs. My problem with xpath is I can't figure out how to make it case-insensitive? – josh Sep 7 '12 ...
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“Warning: iPhone apps should include an armv6 architecture” even with build config set

... If you uncheck "Build Active Architecture Only", then it will build all the valid architectures. Update: This is no longer applicable as of Xcode 4 - follow Nick's instructions for Xcode 4 and later. share |...
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How to install the JDK on Ubuntu Linux

I am trying to install the Java Development Kit (JDK) on Ubuntu Linux distribution, but I am unable to install it. 33 A...