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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) p...
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Is this object-lifetime-extending-closure a C# compiler bug?

I was answering a question about the possibility of closures (legitimately) extending object-lifetimes when I ran into some extremely curious code-gen on the part of the C# compiler (4.0 if that matters). ...
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Selecting only first-level elements in jquery

How can I select the link elements of only the parent <ul> from a list like this? 10 Answers ...
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Display JSON as HTML [closed]

Any recommendations on how to embed JSON in an HTML page with the JSON formatted in a human readable style? For example, when you view XML in a browser, most browsers display the XML formatted (indented, proper line breaks, etc). I'd like the same end result for JSON. ...
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SSL Error: CERT_UNTRUSTED while using npm command

I am trying to install express framework using npm command but getting following error. 7 Answers ...
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How to calculate cumulative normal distribution?

I am looking for a function in Numpy or Scipy (or any rigorous Python library) that will give me the cumulative normal distribution function in Python. ...
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ActiveRecord OR query

How do you do an OR query in Rails 3 ActiveRecord. All the examples I find just have AND queries. 14 Answers ...
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Comparing two files in linux terminal

There are two files called "a.txt" and "b.txt" both have a list of words. Now I want to check which words are extra in "a.txt" and are not in "b.txt" . ...
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Use Font Awesome Icons in CSS

... You can't use text as a background image, but you can use the :before or :after pseudo classes to place a text character where you want it, without having to add all kinds of messy extra mark-up. Be sure to set position:relative on your actual text wrapper for the positioning to work. .m...
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Don't understand why UnboundLocalError occurs (closure) [duplicate]

... Python doesn't have variable declarations, so it has to figure out the scope of variables itself. It does so by a simple rule: If there is an assignment to a variable inside a function, that variable is considered local.[1] Thus, the line counter += 1 implicitly makes counte...