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Python matplotlib multiple bars

...n='center') ax.bar(x+0.2, k, width=0.2, color='r', align='center') ax.xaxis_date() plt.show() I don't know what's the "y values are also overlapping" means, does the following code solve your problem? ax = plt.subplot(111) w = 0.3 ax.bar(x-w, y, width=w, color='b', align='center') ax.bar(x, z,...
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How do I do an OR filter in a Django query?

... @alexis: you could also do Item.objects.filter(creator__in=creators), for example. – Kevin London Dec 9 '14 at 23:11 4 ...
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Adding a cross-reference to a subheading or anchor in another page

... general :ref: directive, documented here. They give this example: .. _my-reference-label: Section to cross-reference -------------------------- This is the text of the section. It refers to the section itself, see :ref:`my-reference-label`. Although the general hyperlinkin...
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How do you build a Singleton in Dart?

...t's easy to build a singleton: class Singleton { static final Singleton _singleton = Singleton._internal(); factory Singleton() { return _singleton; } Singleton._internal(); } You can construct it like this main() { var s1 = Singleton(); var s2 = Singleton(); print(identical(...
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Recursively remove files

Does anyone have a solution to remove those pesky ._ and .DS_Store files that one gets after moving files from a Mac to A Linux Server? ...
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How to do what head, tail, more, less, sed do in Powershell? [closed]

...txt | more # or less if you have it installed gc log.txt | %{ $_ -replace '\d+', '($0)' } # sed This works well enough for small files, larger ones (more than a few MiB) are probably a bit slow. The PowerShell Community Extensions include some cmdlets for specialised file stuf...
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ImportError: numpy.core.multiarray failed to import

... following command in my Mac terminal: python -c "import numpy;print(numpy.__version__);print(numpy.__file__)"; This command gave me the version and location of numpy that I was using (turned out it was 1.6.2). I went to this location and manually replaced it with the numpy folder for 1.8, which re...
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ASP.NET MVC: No parameterless constructor defined for this object

...ot know if it makes sense... something like that. – H_He Jul 28 '14 at 11:52 1 Tuples... maybe fo...
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Read a file in Node.js

... Use path.join(__dirname, '/start.html'); var fs = require('fs'), path = require('path'), filePath = path.join(__dirname, 'start.html'); fs.readFile(filePath, {encoding: 'utf-8'}, function(err,data){ if (!err) { c...
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Where and how is the _ViewStart.cshtml layout file linked?

...rting with the ASP.NET MVC 3 Beta release, you can now add a file called _ViewStart.cshtml (or _ViewStart.vbhtml for VB) underneath the \Views folder of your project: The _ViewStart file can be used to define common view code that you want to execute at the start of each View’s renderin...