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Reorder bars in geom_bar ggplot2

I am trying to make a bar-plot where the plot is ordered from the miRNA with the highest value to the miRNA with the lowest. Why does my code not work? ...
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What does -D_XOPEN_SOURCE do/mean?

I recently encountered some code that gcc would not compile without this arg. I checked the gcc man page, but did not find this specific option. I did find XOPEN_SOURCE , but there was little explanation of what it does. ...
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Android Studio needs JDK 7 for Android-L mac

I was trying to look how my app looks in material design and I would like to use the new cards lib. My Problem is, that it's giving me this error within my gradle file and I need to fix that. ...
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Difference between setUp() and setUpBeforeClass()

When unit testing with JUnit, there are two similar methods, setUp() and setUpBeforeClass() . What is the difference between these methods? Also, what is the difference between tearDown() and tearDownAfterClass() ? ...
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jQuery.ajax handling continue responses: “success:” vs “.done”?

I have been working with jQuery and AJAX for a few weeks now and I saw two different ways to 'continue' the script once the call has been made: success: and .done . ...
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Should I use document.createDocumentFragment or document.createElement

I was reading about document fragments and DOM reflow and wondered how document.createDocumentFragment differed from document.createElement as it looks like neither of them exist in the DOM until I append them to a DOM element. ...
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Is it .yaml or .yml?

According to yaml.org , the official file extension is .yaml . 4 Answers 4 ...
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Stop caching for PHP 5.5.3 in MAMP

Installed MAMP on a new Macbook with PHP 5.5.3. 9 Answers 9 ...
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How to apply an XSLT Stylesheet in C#

I want to apply an XSLT Stylesheet to an XML Document using C# and write the output to a File. 4 Answers ...
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c# open file with default application and parameters

The most easy way to open a file with the default application is: 5 Answers 5 ...