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What's the best way to use R scripts on the command line (terminal)?

It's very convenient to have R scripts for doing simple plots from the command line. However, running R from bash scripts is not convenient at all. The ideal might be something like ...
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How to change plot background color?

I am making a scatter plot in matplotlib and need to change the background of the actual plot to black. I know how to change the face color of the plot using: ...
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Android: Clear the back stack

In Android I have some activities, let's say A, B, C. 38 Answers 38 ...
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Test if object implements interface

What is the simplest way of testing if an object implements a given interface in C#? (Answer to this question in Java ) 1...
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How do I parse JSON with Ruby on Rails? [duplicate]

I'm looking for a simple way to parse JSON, extract a value and write it into a database in Rails. 12 Answers ...
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Repeat Character N Times

In Perl I can repeat a character multiple times using the syntax: 23 Answers 23 ...
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Hidden Features of C#? [closed]

This came to my mind after I learned the following from this question : 296 Answers 2...
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app-release-unsigned.apk is not signed

I downloaded the zip file of an Android app on github and I'm trying to run it, but I get a dialog with this message 17 Ans...
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How to get UILabel to respond to tap?

... You can add a UITapGestureRecognizer instance to your UILabel. For example: UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(labelTapped)]; tapGestureRecognizer.numberOfTapsRequired = 1; [myLa...
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Calling a method every x minutes

I want to call some method on every 5 minutes. How can I do this? 7 Answers 7 ...