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How to split/partition a dataset into training and test datasets for, e.g., cross validation?

What is a good way to split a NumPy array randomly into training and testing/validation dataset? Something similar to the cvpartition or crossvalind functions in Matlab. ...
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How to add months to a date in JavaScript? [duplicate]

I want to add months to a date in JavaScript. 4 Answers 4 ...
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What is the HMVC pattern?

...for an e-commerce website. It is essentially a piece of content that needs to be displayed across multiple pages, and possibly even in different places, depending on the context of the main HTTP request. Traditional MVC frameworks generally don't provide a direct answer for these types of content s...
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Representing and solving a maze given an image

What is the best way to represent and solve a maze given an image? 10 Answers 10 ...
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How to solve “The specified service has been marked for deletion” error

I try to remove a Windows Service with sc delete <service name> , and encounter the following error: 21 Answers ...
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Displaying Windows command prompt output and redirecting it to a file

...e Windows command prompt and have the output both displayed and redirected to a file at the same time? 33 Answers ...
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How do you convert an entire directory with ffmpeg?

How do you convert an entire directory/folder with ffmpeg via command line or with a batch script? 24 Answers ...
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Purpose of Python's __repr__

...intable representation of the object, most likely one of the ways possible to create this object. See official documentation here. __repr__ is more for developers while __str__ is for end users. A simple example: >>> class Point: ... def __init__(self, x, y): ... self.x, self.y = x,...
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What's the difference between ContentControl and ContentPresenter?

...s that contain other elements and have a Content-property (for example, Button). ContentPresenter is used inside control templates to display content. ContentControl, when used directly (it's supposed to be used as a base class), has a control template that uses ContentPresenter to display it's co...
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John Carmack's Unusual Fast Inverse Square Root (Quake III)

...ources. How the mythical constant was derived is something of a mystery. To quote Gary Tarolli: Which actually is doing a floating point computation in integer - it took a long time to figure out how and why this works, and I can't remember the details anymore. A slightly better cons...