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Plot a legend outside of the plotting area in base graphics?

As the title says: How can I plot a legend outside the plotting area when using base graphics? 10 Answers ...
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Why doesn't Python have a sign function?

I can't understand why Python doesn't have a sign function. It has an abs builtin (which I consider sign 's sister), but no sign . ...
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Getting the array length of a 2D array in Java

I need to get the length of a 2D array for both the row and column. I’ve successfully done this, using the following code: ...
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What is a good regular expression to match a URL? [duplicate]

Currently I have an input box which will detect the URL and parse the data. 6 Answers ...
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How to format a number as percentage in R?

One of the things that used to perplex me as a newby to R was how to format a number as a percentage for printing. 10 Answe...
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Add column with constant value to pandas dataframe [duplicate]

Given a DataFrame: 4 Answers 4 ...
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Syntax for creating a two-dimensional array

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Finding current executable's path without /proc/self/exe

It seems to me that Linux has it easy with /proc/self/exe. But I'd like to know if there is a convenient way to find the current application's directory in C/C++ with cross-platform interfaces. I've seen some projects mucking around with argv[0], but it doesn't seem entirely reliable. ...
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Image Greyscale with CSS & re-color on mouse-over?

I am looking to take an icon that is colored (and will be a link) and turn it greyscale until the user places their mouse over the icon (where it would then color the image). ...
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Is object empty? [duplicate]

What is the fastest way to check if an object is empty or not? 23 Answers 23 ...