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How do you round a floating point number in Perl?

... mentioned. The code concatenates respective rounded positive integer only based on the decimals. int($_) basically round-down the number so ($-int($)) captures the decimals. If the decimals are (by definition) strictly less than 0.5, round-down the number. If not, round-up by adding 1. ...
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Iterating each character in a string using Python

... This may be based on just having used C for so long, but I almost always end up using this C-ish method. For instance, I have a file with some 4-digit numbers scattered about, all of which start with 0. So I need to find a "0" and grab...
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How can I convert JSON to CSV?

...csv() Which can either return a string or write directly to a csv-file. Based on the verbosity of previous answers, we should all thank pandas for the shortcut. share | improve this answer ...
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Python 2.7: Print to File

... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers. Draft saved Draft discarded ...
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Using module 'subprocess' with timeout

... I like this unix-based approach. Ideally, one would combine this with a windows-specific approach (using CreateProcess and Jobs) .. but for now, the solution below is simple, easy and works-so-far. – Sridhar Ratnakumar ...
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download and install visual studio 2008 [closed]

... I just needed to add 64-bit support to an existing VS2008 installation, and the first link provided in this answer worked for that purpose. I also had to download the VS2008 SP1 installer, and follow the instructions here to complete the feature...
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How to get a cross-origin resource sharing (CORS) post request working

...s is to probably use a provider JavaScript API which does not make browser based calls and can handle Cross Origin requests. E.g. Facebook JavaScript API and Google JS API. In case your API provider is not current and does not support Cross Origin Resource Origin '*' header in its response and doe...
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Convert data.frame column to a vector?

... Ari B. FriedmanAri B. Friedman 64.3k3131 gold badges164164 silver badges225225 bronze badges ...
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android TextView: setting the background color dynamically doesn't work

... 64 To set red color: textView.setBackgroundColor(0xfff00000); Or <color name="solid_red"&gt...
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std::unique_ptr with an incomplete type won't compile

...mplete type is undefined behaviour? So, if possible I would define a very base object to all your objects, with virtual destructor. And you're almost good. You just should keep in mind that system will call virtual destructor for your pointer, so you should define it for every ancestor. You should ...