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How to make a great R reproducible example

... bug report or searching for guidance on mailing lists and here on Stack Overflow, a reproducible example is often asked and always helpful. ...
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How can I create a self-signed cert for localhost?

I've gone through the steps detailed in How do you use https / SSL on localhost? but this sets up a self-signed cert for my machine name, and when browsing it via https://localhost I receive the IE warning. ...
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How to throw an exception in C?

I typed this into google but only found howtos in C++, 11 Answers 11 ...
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Calculate text width with JavaScript

I'd like to use JavaScript to calculate the width of a string. Is this possible without having to use a monospace typeface? ...
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How many threads is too many?

I am writing a server, and I send each action of into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads. ...
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RegEx to exclude a specific string constant [duplicate]

Can regular expression be utilized to match any string except a specific string constant let us say "ABC" ? Is this possible to exclude just one specific string constant? Thanks your help in advance. ...
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Sort points in clockwise order?

Given an array of x,y points, how do I sort the points of this array in clockwise order (around their overall average center point)? My goal is to pass the points to a line-creation function to end up with something looking rather "solid", as convex as possible with no lines intersecting. ...
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Utilizing multi core for tar+gzip/bzip compression/decompression

I normally compress using tar zcvf and decompress using tar zxvf (using gzip due to habit). 6 Answers ...
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How can I count the occurrences of a list item?

Given an item, how can I count its occurrences in a list in Python? 25 Answers 25 ...
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Repeating characters in VIM insert mode

Is there a way of repeating a character while in Vim's insert mode? For example, say I would like to insert 80 dashes, in something like emacs I would type: ...