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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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Create a git patch from the uncommitted changes in the current working directory
Say I have uncommitted changes in my working directory. How can I make a patch from those without having to create a commit?
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The data-toggle attributes in Twitter Bootstrap
What does data-toggle attributes do in Twitter Bootstrap? I couldn't find an answer in Bootstrap API.
10 Answers
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How do I remove a file from the FileList
I'm building a drag-and-drop-to-upload web application using HTML5, and I'm dropping the files onto a div and of course fetching the dataTransfer object, which gives me the FileList .
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How do I change the hover over color for a hover over table in Bootstrap?
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Why is the td needed? (sorry I'm worthless at css, trying to learn)
– Alexander Derck
Mar 14 '16 at 14:32
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vector::at vs. vector::operator[]
I know that at() is slower than [] because of its boundary checking, which is also discussed in similar questions like C++ Vector at/[] operator speed or ::std::vector::at() vs operator[] << surprising results!! 5 to 10 times slower/faster! . I just don't understand what the at() met...
How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
How do I implement the following (Python pseudocode) in C++?
21 Answers
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iOS 7 TableView like in Settings App on iPad
I want to have a group UITableView with the style same like the iPad Settings application Detail view for iOS 7 .
15 Ans...
Adding header for HttpURLConnection
I'm trying to add header for my request using HttpUrlConnection but the method setRequestProperty() doesn't seem working. The server side doesn't receive any request with my header.
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Find the min/max element of an Array in JavaScript
How can I easily obtain the min or max element of a JavaScript Array?
51 Answers
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