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What's the difference between Jetty and Netty?
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3 Answers
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Active
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What is the best way to compute trending topics or tags?
...) / std
Sample Output
>>> zscore(12, [2, 4, 4, 4, 5, 5, 7, 9])
3.5
>>> zscore(20, [21, 22, 19, 18, 17, 22, 20, 20])
0.0739221270955
>>> zscore(20, [21, 22, 19, 18, 17, 22, 20, 20, 1, 2, 3, 1, 2, 1, 0, 1])
1.00303599234
>>> zscore(2, [21, 22, 19, 18, 17, 22, 20,...
How does this CSS produce a circle?
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373
How does a border of 180 pixels with height/width-> 0px become a circle with a radius of...
Bulk package updates using Conda
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355
You want conda update --all.
conda search --outdated will show outdated packages, and conda u...
Read .mat files in Python
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edited Jul 24 '19 at 20:23
user8408080
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answered Ma...
How to create a video from images with FFmpeg?
...ideo filter instead of -r for the output framerate
ffmpeg -r 1/5 -i img%03d.png -c:v libx264 -vf fps=25 -pix_fmt yuv420p out.mp4
Alternatively the format video filter can be added to the filter chain to replace -pix_fmt yuv420p like "fps=25,format=yuv420p". The advantage of this method is tha...
How do I explicitly specify a Model's table-name mapping in Rails?
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437
Rails >= 3.2 (including Rails 4+ and 5+):
class Countries < ActiveRecord::Base
self.ta...
Booleans, conditional operators and autoboxing
...nd operand to boolean)
E2: `true ? null : false` - Boolean (autoboxing of 3rd operand to Boolean)
See Java Language Specification, section 15.25 Conditional Operator ? :
For E1, the types of the 2nd and 3rd operands are Boolean and boolean respectively, so this clause applies:
If one of the...