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How to filter rows in pandas by regex
I would like to cleanly filter a dataframe using regex on one of the columns.
7 Answers
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Direct casting vs 'as' operator?
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John Weisz
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answered Sep 25 '08 at 10:16
SanderSander
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What is an anti-pattern?
...ut patterns, but I don't get anti-patterns. Definitions from the web and Wikipedia confuse me a lot.
14 Answers
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Debugging in Clojure? [closed]
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There's also dotrace, which allows you to look at the inputs and outputs of selected functions.
(use 'clojure.contrib.trace)
(defn fib[n] (if (< n 2) n (+ (fib (- n 1)) (fib (- n 2)))))
(dotrace [fib] (fib 3))
produces the output:
TRACE t4425: (fib 3)
TRACE t4426...
How to identify server IP address in PHP
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Like this for the server ip:
$_SERVER['SERVER_ADDR'];
and this for the port
$_SERVER['SERVER_PORT'];
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What's the difference between and in servlet
... answered Oct 20 '10 at 13:23
skaffmanskaffman
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What is Model in ModelAndView from Spring MVC?
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Example 2
If you have...
MyBean bean = new MyBean();
bean.setName("Mike!");
bean.setMessage("Meow!");
return new ModelAndView("welcomePage","model",bean);
... then in your jsp, you can do:-
Hello ${model.name}! {model.message} // displays Hello Mike! Meow!
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C# member variable initialization; best practice?
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Other than that, I tend to prefer the field initializer syntax; I find it keeps things localized - i.e.
private readonly List<SomeClass> items = new List<SomeClass>();
public List<SomeClass> Items {get {return items;}}
I don't have to go hunting up and down to find where it is ...
How to resize a VirtualBox vmdk file
I've run out of space on a virtual machine disk which is a vmdk and need to resize the virtual image. Resizing with the command
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Center a 'div' in the middle of the screen, even when the page is scrolled up or down?
I have in my page a button which when clicked displays a div (popup style) in the middle of my screen.
5 Answers
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