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Should I use a data.frame or a matrix?

When should one use a data.frame , and when is it better to use a matrix ? 6 Answers ...
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When should I use UNSIGNED and SIGNED INT in MySQL?

When should I use UNSIGNED and SIGNED INT in MySQL ? What is better to use or this is just personal prefernce ? Because I've seen it used like this; ...
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How to stop C++ console application from exiting immediately?

Lately, I've been trying to learn C++ from this website . Unfortunately whenever I try to run one of the code samples, I see that program open for about a half second and then immediately close. Is there a way to stop the program from closing immediately so that I can see the fruits of my effort? ...
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Images can't contain alpha channels or transparencies

Apple has released new version of iTunes Connect & I got an error message when I tried to set Screenshots on itunes connect for my app. ...
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.NET - Get protocol, host, and port

Is there a simple way in .NET to quickly get the current protocol, host, and port? For example, if I'm on the following URL: ...
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Bootstrap throws Uncaught Error: Bootstrap's JavaScript requires jQuery [closed]

I am trying to use Bootstrap to make an interface for a program. I added jQuery 1.11.0 to the <head> tag and thought that was that, but when I launch the web page in a browser jQuery reports an error: ...
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How can I strip HTML tags from a string in ASP.NET?

Using ASP.NET, how can I strip the HTML tags from a given string reliably (i.e. not using regex)? I am looking for something like PHP's strip_tags . ...
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How can I get a list of Git branches, ordered by most recent commit?

I want to get a list of all the branches in a Git repository with the "freshest" branches at the top, where the "freshest" branch is the one that's been committed to most recently (and is, therefore, more likely to be one I want to pay attention to). ...
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Difference between __str__ and __repr__?

What is the difference between __str__ and __repr__ in Python? 23 Answers 23 ...