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Adding a legend to PyPlot in Matplotlib in the simplest manner possible

... Add a label= to each of your plot() calls, and then call legend(loc='upper left'). Consider this sample (tested with Python 3.8.0): import numpy as np import matplotlib.pyplot as plt x = np.linspace(0, 20, 1000) y1 = np.sin(x) y2 = np.cos(x) plt.plot(x, y1,...
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Center content of UIScrollView when smaller

... I put this code in a func and also called it in viewDidLayoutSubviews to make sure it was properly set up initially. – Carter Medlin Jul 8 '16 at 19:30 ...
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Overriding == operator. How to compare to null? [duplicate]

... ReferenceEquals emits a method call though, while casting to object will cause the compiler to just emit instructions to compare the references for equality. ... But that probably counts as evil micro-optimization. – dtb ...
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Is this object-lifetime-extending-closure a C# compiler bug?

...IL_000e: ldloc.0 IL_000f: ldc.r8 42 IL_0018: ldc.r8 1 IL_0021: call float64 [mscorlib]System.Math::Pow(float64, float64) IL_0026: stfld float64 ConsoleApplication1.Program/Foo/'<>c__DisplayClass1'::capturedVariable IL_002b: ldarg.0 IL_002c: ldloc.0 IL_002d: ldftn in...
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What is the meaning and difference between subject, user and principal?

... These are hierarchical in the way that genus, species and individual are hierarchical. Subject - In a security context, a subject is any entity that requests access to an object. These are generic terms used to denote the thing requesting access and the thing the request is made again...
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Position an element relative to its container

...ike to create the bars using DIVs with background colors and percentage widths depending on the values I want to graph. I also want to have a grid lines to mark an arbitrary position along the graph. ...
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Spring @Transactional - isolation, propagation

...umber of rows read by T1 is different from rows on table A1. Scenario 1 is called Dirty reads. Scenario 2 is called Non-repeatable reads. Scenario 3 is called Phantom reads. So, isolation level is the extend to which Scenario 1, Scenario 2, Scenario 3 can be prevented. You can obtain complete isolat...
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UIButton: set image for selected-highlighted state

...elected, but when the button in selected state and I press/highlight it I didn't see my highlighted image but just grayed picture. Is it possible to set an image for highlighted state when the button selected? ...
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Xcode iOS 8 Keyboard types not supported

...TextField Ctrl-dragged as an @Outlet in my .swift class. Now in viewDidLoad i'm using this code 10 Answers ...
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How to pass command line arguments to a rake task

... Unfortuanely, zsh can not parse the call correctly, you need type the command on zsh like this: rake thing:work\[1,2,3\], or this rake 'thing:work[1,2,3]' – hutusi Jul 27 '17 at 6:51 ...