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Update R using RStudio

...se a different (previous, x32, x64) bit version. – Brandon Bertelsen Dec 1 '12 at 5:50 7 @Brandon...
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Browse the files created on a device by the iOS application I'm developing, on workstation?

...niser, go to your device's Summary tab. Find your application in the list, and click the disclosure triangle. Under it, you should see an icon saying "Application Data". Click the down pointing arrow to download the data, and it'll prompt you for somewhere to save it. In Xcode 5, listed under your ...
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Groovy Shell warning “Could not open/create prefs root node …”

I tried to open the Groovy Shell ( groovysh ) on Windows 8 and got the following output: 9 Answers ...
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HTML img scaling

... Only set the width or height, and it will scale the other automatically. And yes you can use a percentage. The first part can be done, but requires JavaScript, so might not work for all users. ...
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Difference between initLoader and restartLoader in LoaderManager

I'm completely lost regarding the differences between the initLoader and the restartLoader functions of the LoaderManager : ...
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How to add 'ON DELETE CASCADE' in ALTER TABLE statement

...ON DELETE CASCADE to an already existing constraint. You will have to drop and re-create the constraint. The documentation shows that the MODIFY CONSTRAINT clause can only modify the state of a constraint (i-e: ENABLED/DISABLED...). ...
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Getting LaTeX into R Plots

... As stolen from here, the following command correctly uses LaTeX to draw the title: plot(1, main=expression(beta[1])) See ?plotmath for more details. share | im...
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Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”

...at the directory "E:\java resources\apache-maven-2.2.0\bin" is on your command search path. Make sure that the JAVA_HOME variable refers to the home directory for your Java installation. If you are executing Java from "E:\Sun\SDK\jdk\bin", then the JAVA_HOME variable needs to point to "E:\Sun\SDK\...
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How to trigger XDebug profiler for a command line PHP script?

...r POST parameter "XDEBUG_PROFILE" when calling a script via HTTP. This is handy if you don't want profiling for ALL of your scripts but only for a few special cases without always changing your PHP configuration. ...
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C-like structures in Python

... Use a named tuple, which was added to the collections module in the standard library in Python 2.6. It's also possible to use Raymond Hettinger's named tuple recipe if you need to support Python 2.4. It's nice for your basic example, but also covers a bunch of edge cases you might run into lat...