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Reading a string with scanf

I'm a little bit confused about something. I was under the impression that the correct way of reading a C string with scanf() went along the lines of ...
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Overlaying histograms with ggplot2 in R

...roblem is that you don't see where 2 histograms overlap - they look rather cut off. 3 Answers ...
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What's the meaning of * (asterisk) in XAML ColumnDefinition?

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Fastest way to remove first char in a String

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How can I count the number of matches for a regex?

Let's say I have a string which contains this: 5 Answers 5 ...
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Blocks on Swift (animateWithDuration:animations:completion:)

I'm having trouble making the blocks work on Swift. Here's an example that worked (without completion block): 7 Answers ...
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Confusion between factor levels and factor labels

There seems to be a difference between levels and labels of a factor in R. Up to now, I always thought that levels were the 'real' name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows: ...
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Matplotlib transparent line plots

I am plotting two similar trajectories in matplotlib and I'd like to plot each of the lines with partial transparency so that the red (plotted second) doesn't obscure the blue. ...
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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?

I've just started learning Ruby and Ruby on Rails and came across validation code that uses ranges: 5 Answers ...
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Fill between two vertical lines in matplotlib

I went through the examples in the matplotlib documentation, but it wasn't clear to me how I can make a plot that fills the area between two specific vertical lines. ...