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How to deal with SettingWithCopyWarning in Pandas?

...hained" assignments, such as the following, which does not always work as expected, particularly when the first selection returns a copy. [see GH5390 and GH5597 for background discussion.] df[df['A'] > 2]['B'] = new_val # new_val not set in df The warning offers a suggestion to rewrite as fo...
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Can I use multiple versions of jQuery on the same page?

...e-versions-of-jquery/ <!-- load jQuery 1.1.3 --> <script type="text/javascript" src="http://example.com/jquery-1.1.3.js"></script> <script type="text/javascript"> var jQuery_1_1_3 = $.noConflict(true); </script> <!-- load jQuery 1.3.2 --> <script type="text/j...
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What does the Visual Studio “Any CPU” target mean?

... so, how do I produce assembly which will JIT to x64 in C++? – galets Feb 5 '09 at 16:48 51 ...
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Why is extending native objects a bad practice?

Every JS opinion leader says that extending the native objects is a bad practice. But why? Do we get a perfomance hit? Do they fear that somebody does it "the wrong way", and adds enumerable types to Object , practically destroying all loops on any object? ...
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Is there a built-in method to compare collections?

... The problem is that SequenceEqual expects the elements to be in the same order. The Dictionary class does not guarantee the order of keys or values when enumerating, so if you're going to use SequenceEqual, you have to sort the .Keys and .Values first! ...
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How to connect android emulator to the internet

...? I've found lots of advice on what do to when your connected through a proxy, but that's not the case here, my machine (Windows 7) is directly connected to the router. ...
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What browsers support HTML5 WebSocket API?

... Client side Hixie-75: Chrome 4.0 + 5.0 Safari 5.0.0 HyBi-00/Hixie-76: Chrome 6.0 - 13.0 Safari 5.0.2 + 5.1 iOS 4.2 + iOS 5 Firefox 4.0 - support for WebSockets disabled. To enable it see here. Opera 11 - with support disabled. To enab...
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How can i query for null values in entity framework?

I want to execute a query like this 14 Answers 14 ...
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Determine if code is running as part of a unit test

...need to look at which assemblies are loaded. Look at Ryan's answer for an example. – Jon Skeet Jun 5 '13 at 9:14 This ...
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SQL injection that gets around mysql_real_escape_string()

... But this wouldn't be a real problem, because mysql_query() doesn't execute multiple statements, no? – Pekka Oct 7 '11 at 21:07 ...