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pandas GroupBy columns with NaN (missing) values

...s far result in potentially dangerous behavior as it is quite possible you select a dummy value that is actually part of the dataset. This is increasingly likely as you create groups with many attributes. Simply put, the approach doesn't always generalize well. A less hacky solve is to use pd.drop_...
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mysql_config not found when installing mysqldb python interface

...one Building dependency tree Reading state information...Done Note, selecting libmysqlclient15-dev instead of libmysqlclient-dev Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required...
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How do I get the width and height of a HTML5 canvas?

...le via .scrollWidth and .scrollHeight: var canvasElem = document.querySelector('canvas'); document.querySelector('#dom-dims').innerHTML = 'Canvas DOM element width x height: ' + canvasElem.scrollWidth + ' x ' + canvasElem.scrollHeight var canvasContext = canvasElem.getC...
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“Thinking in AngularJS” if I have a jQuery background? [closed]

... Imperative → declarative In jQuery, selectors are used to find DOM elements and then bind/register event handlers to them. When an event triggers, that (imperative) code executes to update/change the DOM. In AngularJS, you want to think about views rather than...
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How to parse/read a YAML file into a Python object? [duplicate]

... Here is one way to test which YAML implementation the user has selected on the virtualenv (or the system) and then define load_yaml_file appropriately: load_yaml_file = None if not load_yaml_file: try: import yaml load_yaml_file = lambda fn: yaml.load(open(fn)) ...
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Dynamic Anonymous type in Razor causes RuntimeBinderException

...ject)expando; } It's very easy to use: return View("ViewName", someLinq.Select(new { x=1, y=2}.ToExpando()); Of course in your view: @foreach (var item in Model) { <div>x = @item.x, y = @item.y</div> } ...
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IntelliJ IDEA jump from interface to implementing class in Java

...e some shortcut that would allow me after creating method in an interface, select and jump to implementing class of that interface? ...
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How do I get the current username in Windows PowerShell?

...g the PowerShell instance) $(Get-WMIObject -class Win32_ComputerSystem | select username).username -- @TwonOfAn on this other forum Comparison @Kevin Panko's comment on @Mark Seemann's answer deals with choosing one of the categories over the other: [The Windows access token approach] is ...
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jQuery's jquery-1.10.2.min.map is triggering a 404 (Not Found)

... Wish i had seen this before doing selected answer. This is much easier and SHOULD be primary answer. The op's self answer is good for info, but is definitely secondary as this is the first question that pops up when googling how to g3et rid of this annoyance....
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“The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine” Error in importing

...4-bit Importer by clicking Start and searching for "Import and Export" and selecting the 64-bit tool. – blizz Apr 27 '17 at 16:21 5 ...