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Overlaying histograms with ggplot2 in R

...m trying to plot 3 histograms onto the same graph. Everything worked fine, but my problem is that you don't see where 2 histograms overlap - they look rather cut off. ...
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Where to put the doxygen comment blocks for an internal library - in H or in CPP files? [closed]

The common sense tells that the Doxygen comment blocks have to be put in the header files where the classes, structs, enums, functions, declarations are. I agree that this is a sound argument for a libraries that are mean to be distributed without its source (only headers and libs with object code)....
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What exactly are late static bindings in PHP?

What exactly are late static bindings in PHP? 8 Answers 8 ...
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What do (lambda) function closures capture?

... Your second question has been answered, but as for your first: what does the closure capture exactly? Scoping in Python is dynamic and lexical. A closure will always remember the name and scope of the variable, not the object it's pointing to. ...
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Can you list the keyword arguments a function receives?

... A little nicer than inspecting the code object directly and working out the variables is to use the inspect module. >>> import inspect >>> def func(a,b,c=42, *args, **kwargs): pass >>> inspect.getargspec(func) (['a', 'b', 'c'], 'args', 'k...
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Filter Java Stream to 1 and only 1 element

... Create a custom Collector public static <T> Collector<T, ?, T> toSingleton() { return Collectors.collectingAndThen( Collectors.toList(), list -> { if (list.size() != 1) { thr...
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How do I count the number of occurrences of a char in a String?

...idiomatic one-liner' for this is: int count = StringUtils.countMatches("a.b.c.d", "."); Why write it yourself when it's already in commons lang? Spring Framework's oneliner for this is: int occurance = StringUtils.countOccurrencesOf("a.b.c.d", "."); ...
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Subqueries vs joins

...tion we inherited from another company to use an inner join instead of a subquery like: 14 Answers ...
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What is the difference between Bower and npm?

What is the fundamental difference between bower and npm ? Just want something plain and simple. I've seen some of my colleagues use bower and npm interchangeably in their projects. ...
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How to use mysql JOIN without ON condition?

Is it possible to write join query without ON statement? and how do these joins differ LEFT JOIN, RIGHT JOIN works. 2 A...