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How to find the kth largest element in an unsorted array of length n in O(n)?

... implemented median-of-medians and compared it to built-in Sort method in .NET and custom solution really ran faster by order of magnitude. Now the real question is: does that matter to you in given circumstances. Writing and debugging 100 lines of code compared to one liner pays off only if that co...
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Is there a numpy builtin to reject outliers from a list

...centile corresponds to 1.2815σ and the 95% is 1.645σ (http://vassarstats.net/tabs.html?#z) As a simple example: import numpy as np # Create some random numbers x = np.random.normal(5, 2, 1000) # Calculate the statistics print("Mean= ", np.mean(x)) print("Median= ", np.median(x)) print("Max/Min...
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What is a non-capturing group in regular expressions?

...names and then reversing their order (thanks to named groups)... regexhero.net/tester/?id=16892996-64d4-4f10-860a-24f28dad7e30 – Steve Wortham Aug 19 '10 at 15:43 2 ...
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What's the difference between the Dependency Injection and Service Locator patterns?

... Johnson & Brian Foote However, the one that opened my eyes was: ASP.NET MVC: Resolve or Inject? That’s the Issue… by Dino Esposito share | improve this answer | fo...
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What are namespaces?

...he same name wihtin a project. From the php documentation (http://www.php.net/manual/en/language.namespaces.rationale.php): What are namespaces? In the broadest definition namespaces are a way of encapsulating items. This can be seen as an abstract concept in many places. For example, in any op...
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simple explanation PHP OOP vs Procedural?

... know about (like Pi, the speed of light, the distance between specific planets, etc.). This is where most OOP explanations get confusing because they branch off into "real world examples" which can quickly get off-topic. Often, "real world" is a euphemism for the ontological perspectives of a part...
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Datatables: Cannot read property 'mData' of undefined

...out which table is related. For my case it is the default rendering of Asp.Net table, which is not standardized when the table is empty. Thanks for the tip! – Hoàng Long Jul 8 '16 at 9:35 ...
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How to export JavaScript array info to csv (on client side)?

... This works fine for like ~7000 rows. But starts giving this error : NETWORK_INVALID_REQUEST. Is any body else facing this issue too? Is there any upper limit of data on encodeURIComponent() function or something? I am using Chrome as the browser. – Abhidemon ...
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How expensive is the lock statement?

... This doesn't answer your query about performance, but I can say that the .NET Framework does offer an Interlocked.Add method that will allow you to add your amount to your done member without manually locking on another object. ...
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Formatting a number with exactly two decimals in JavaScript

...t what it is, but since Math.round is lossy - you can check it on jsfiddle.net - this is the only way I knew how to "fix" it). It adds 0.001 to the already padded number, so it is adding a 1 three 0s to the right of the decimal value. So it should be safe to use. After that I added .toFixed(decimal...