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What is “entropy and information gain”?
...n the sub-tree prediction outcome by a small amount of 0.1518 (measured in bits as units of information).
At each node of the tree, this calculation is performed for every feature, and the feature with the largest information gain is chosen for the split in a greedy manner (thus favoring features t...
Suppressing deprecated warnings in Xcode
...stic ignored "-Wdeprecated-declarations"
which in turn makes it a little bit better practice than just suppressing all warning once and together... after all you got to know what you are doing it for.
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Parse config files, environment, and command-line arguments, to get a single collection of options
...his as real code, I decided to take a little time tonight to clean it up a bit. :-)
– mgilson
Aug 11 '14 at 5:53
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What's the difference between dist-packages and site-packages?
I'm a bit miffed by the python package installation process. Specifically, what's the difference between packages installed in the dist-packages directory and the site-packages directory?
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Difference between len() and .__len__()?
...ing on the objects involved) -- in the case of len vs __len__, it's just a bit of sanity checking on the built-in that is missing from the magic method:
>>> class bah(object):
... def __len__(self): return "an inch"
...
>>> bah().__len__()
'an inch'
>>> len(bah())
Trac...
Python multiprocessing PicklingError: Can't pickle
...the profiler on it.
Note that this was on Windows (where the forking is a bit less elegant).
I was running:
python -m profile -o output.pstats <script>
And found that removing the profiling removed the error and placing the profiling restored it. Was driving me batty too because I knew t...
How to go about formatting 1200 to 1.2k in java
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Improved readability a bit, Just needed to add return statement from jzd to solve the 4 char issue. And remember to add suffix if going over t to avoid AIOOB exception. ;)
– jhurtado
Jan 21 '11 at 5:13
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How unique is UUID?
...1 UUIDs correctly generated by the same machine in a short period will exhibit obvious similarities, but ought to still be unique.
– Bob Aman
Aug 8 '17 at 22:32
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How to print to stderr in Python?
...will be gone in less than 2 years... Some things between 2 and 3 can get a bit tricky; print function isn't one of them. See docs.python.org/2/library/2to3.html
– bobpaul
May 16 '18 at 4:14
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How to print an exception in Python?
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In Python 2.6 or greater it's a bit cleaner:
except Exception as e: print(e)
In older versions it's still quite readable:
except Exception, e: print e
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