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Prepend a level to a pandas MultiIndex

... This is especially nice for adding a level to the columns by adding axis=1, since the df.columns doesn't have the "set_index" method like the index, which always bugs me. – Rutger Kassies Feb 10 '17 a...
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Is there a way to use SVG as content in a pseudo element :before or :after

... <div class="author_">Lord Byron</div> .author_ { font-family: 'Playfair Display', serif; font-size: 1.25em; font-weight: 700;letter-spacing: 0.25em; font-style: italic; position:relative; margin-top: -0.5em; color: bla...
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What is the best way to concatenate two vectors?

... AB.reserve( A.size() + B.size() ); // preallocate memory AB.insert( AB.end(), A.begin(), A.end() ); AB.insert( AB.end(), B.begin(), B.end() ); share | improve this...
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Eliminate extra separators below UITableView

..."bottom bounce" of the table is handled, as you prefer. (Height zero is usually fine). To do it programmatically: Swift override func viewDidLoad() { super.viewDidLoad() self.tableView.tableFooterView = UIView() } Objective-C iOS 6.1+ - (void)viewDidLoad { [super viewDidLoad...
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Access object child properties using a dot notation string [duplicate]

...(r, "b.b2")); //-> 99 Although there are answers that extend this to "allow" array index access, that's not really necessary as you can just specify numerical indexes using dot notation with this method: getDescendantProp({ a: [ 1, 2, 3 ] }, 'a.2'); //-> 3 ...
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In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?

... What you are talking about is called dot sourcing. And it's evil. But no worries, there is a better and easier way to do what you are wanting with modules (it sounds way scarier than it is). The major benefit of using modules is that you can unload them fr...
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Debug code-first Entity Framework migration codes

.... If you, like me, some times have problems in the Seed() method what I usually do is simply create a public method that calls the Protect Seed(). public void SeedDebug(AppDbContext context) { Seed(context); } then in my HomeController I call this method in Debug mode. public class HomeContr...
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Custom error pages on asp.net MVC3

...t's of type IController so there's absolutely nothing preventing you from calling this method. And by the way Execute was protected in the Controller class as well in MVC 3, so there's no change in this regard. – Darin Dimitrov Oct 7 '13 at 10:29 ...
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What is the difference between JavaConverters and JavaConversions in Scala?

...eating wrappers that implement either the Scala interface and forward the calls to the underlying Java collection, or the Java interface, forwarding the calls to the underlying Scala collection. JavaConverters uses the pimp-my-library pattern to “add” the asScala method to the Java collections ...
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Removing a list of characters in string

...unicodes), the absolutely best method is str.translate: >>> chars_to_remove = ['.', '!', '?'] >>> subj = 'A.B!C?' >>> subj.translate(None, ''.join(chars_to_remove)) 'ABC' Otherwise, there are following options to consider: A. Iterate the subject char by char, omit unwa...