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How to learn R as a programming language [closed]

...ning it as a statistical system. My question is prompted by lack of understanding of such functions as parse, eval, etc. which may not find frequent use by an R user with a 'statistics' persuasion. ...
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What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?

...a few key factors... First, there are two types of compression: Lossless and Lossy. Lossless means that the image is made smaller, but at no detriment to the quality. Lossy means the image is made (even) smaller, but at a detriment to the quality. If you saved an image in a Lossy format over a...
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How can I save application settings in a Windows Forms application?

... get persistable settings. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist. Use the Settings tab to create application settings. Visual Studio creates the files Settings.settings and Settings.Designe...
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JUnit 4 Test Suites

...lTests {} Now you can run this in a couple different ways: right-click and run in Eclipse as Junit test create a runable Java Application; Main class='org.junit.runner.JUnitCore' and Args='my.package.tests.AllTests' run from the command line: $ java -cp build/classes/:/usr/share/java/junit4.jar...
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When should you use constexpr capability in C++11?

...hat can be evaluated down to a constant while maintaining good readability and allowing slightly more complex processing than just setting a constant to a number. It basically provides a good aid to maintainability as it becomes more obvious what you are doing. Take max( a, b ) for example: templat...
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How can I deploy an iPhone application from Xcode to a real iPhone device?

... It sounds like the application isn't signed. Download ldid from Cydia and then use it like so: ldid -S /Applications/AccelerometerGraph.app/AccelerometerGraph Also be sure that the binary is marked as executable: chmod +x /Applications/AccelerometerGraph.app/AccelerometerGraph ...
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“The Controls collection cannot be modified because the control contains code blocks”

... Its resolved when i copy and paste my Java Script code to the bottom of page. In the previous its placed in HEAD tag. – Miank Feb 5 '14 at 4:15 ...
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How to handle WndProc messages in WPF?

In Windows Forms, I'd just override WndProc , and start handling messages as they came in. 9 Answers ...
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What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?

What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? 6 Answers ...
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MySQL: How to copy rows, but change a few fields?

... do it without having to specify the column names? – Andrew May 6 '10 at 18:00 4 Not that I'm awa...