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Generate a heatmap in MatPlotLib using a scatter data set

...ou can use numpy's histogram2d function: import numpy as np import numpy.random import matplotlib.pyplot as plt # Generate some test data x = np.random.randn(8873) y = np.random.randn(8873) heatmap, xedges, yedges = np.histogram2d(x, y, bins=50) extent = [xedges[0], xedges[-1], yedges[0], yedges[...
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How to [recursively] Zip a directory in PHP?

... $file = str_replace('\\', '/', $file); // Ignore "." and ".." folders if( in_array(substr($file, strrpos($file, '/')+1), array('.', '..')) ) continue; $file = realpath($file); if (is_dir($file) === true) { ...
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Bordered UITextView

... I didn't think it really needed much explaining, view is the UITextView, and the code goes wherever you'd set up the view (awakeFromNib or viewDidLoad are two possible places). Since there was no code given there's no way to give good context in response. – Kendall Helmstett...
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How do I close a connection early?

...TCP connection to the browser without ending the PHP script: Connection handling Docs Supposedly it requires a bit more than sending a close header. OP then confirms: yup, this did the trick: pointing to user-note #71172 (Nov 2006) copied here: Closing the users browser connection whilst ...
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Take a screenshot of a webpage with JavaScript?

Is it possible to to take a screenshot of a webpage with JavaScript and then submit that back to the server? 15 Answers ...
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Difference between dict.clear() and assigning {} in Python

In python, is there a difference between calling clear() and assigning {} to a dictionary? If yes, what is it? Example: ...
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Better way to check if a Path is a File or a Directory?

I am processing a TreeView of directories and files. A user can select either a file or a directory and then do something with it. This requires me to have a method which performs different actions based on the user's selection. ...
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IIS7 Overrides customErrors when setting Response.StatusCode?

...Code to whatever is appropriate. For example, if I make a custom 404 page and name it 404.aspx, I could put <% Response.StatusCode = 404 %> in the contents in order to make it have a true 404 status header. ...
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How to build a Debian/Ubuntu package from source?

I have the source of a program (taken from cvs/svn/git/...) and I'd like to build a Debian/Ubuntu package for it. The package is present in the repositories, but: ...
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How do you check if a certain index exists in a table?

... select like this: SELECT * FROM sys.indexes WHERE name='YourIndexName' AND object_id = OBJECT_ID('Schema.YourTableName') share | improve this answer | follow ...