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Remove duplicated rows using dplyr

... @hadley I like the unique() and distinct() function, however, they all remove the 2nd duplicate from the data frame. what if I want to have all 1st encounters of the duplicate value removed? How could this be done? Thanks for any help! – FlyingDutch Feb...
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WatiN or Selenium? [closed]

.... It will be a major upgrade to the current CTP 2.0 versions and will basically give you the same functionality to automate FireFox and IE as version 1.3.0 offers for automating IE. So no concerns there. Hope this helps in making your choice Jeroen van Menen Lead dev WatiN ...
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Using “Object.create” instead of “new”

...mple may not let you see the real benefits of Object.create. This methods allows you to easily implement differential inheritance, where objects can directly inherit from other objects. On your userB example, I don't think that your init method should be public or even exist, if you call again thi...
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How To Remove Outline Border From Input Button

...ng that in each button: #button-tyle{ outline: 0; } or use same style for all buttons without #id in each button, here is a demo link: input[type="button"] { width:70px; height:30px; margin-left:72px; margin-top:15px; display:block; background-color:gray; color:white; border: none; outline: 0; } ...
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jQuery.parseJSON throws “Invalid JSON” error due to escaped single quote in JSON

...hine diagram on the JSON website, only escaped double-quote characters are allowed, not single-quotes. Single quote characters do not need to be escaped: Update - More information for those that are interested: Douglas Crockford does not specifically say why the JSON specification does not al...
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How is the Linux kernel tested ?

How do the Linux kernel developers test their code locally and after they have it committed? Do they use some kind of unit testing, build automation? test plans? ...
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How to pass macro definition from “make” command line arguments (-D) to C source code?

I usually pass macro definitions from "make command line" to a "makefile" using the option : -Dname=value. The definition is accessible inside the makefile. ...
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Solution to INSTALL_FAILED_INSUFFICIENT_STORAGE error on Android [closed]

The INSTALL_FAILED_INSUFFICIENT_STORAGE error is the bane of every Android developer's life. It happens regardless of app size, or how much storage is available. Rebooting the target device fixes the problem briefly, but it soon comes back. There are hundreds (if not thousands) of message board po...
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How do I call Objective-C code from Swift?

In Swift, how does one call Objective-C code? 17 Answers 17 ...
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What is the difference between Cygwin and MinGW?

...Unix-based applications to Windows much easier, by emulating many of the small details that Unix-based operating systems provide, and are documented by the POSIX standards. Your application can use Unix feature such as pipes, Unix-style file and directory access, and so forth, and it can be compile...