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How to extract the decision rules from scikit-learn decision-tree?
...sion of sklearn, because some values of tree.tree_.feature are -2 (specifically for leaf nodes).
There is no need to have multiple if statements in the recursive function, just one is fine.
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Ruby: kind_of? vs. instance_of? vs. is_a?
...metimes. Think @honda.kind_of? Car and @person.is_a? Administrator, Ruby's all about the aesthetics. In fact, notice the grammatical error... with active support you can write @person.is_an? Administrator :)... That might have made it into Ruby core by now, actually.
– rfunduk
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Purpose of #!/usr/bin/python3
...ty across different systems in case they have the language interpreter installed in different locations.
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How can I convert this foreach code to Parallel.ForEach?
I am a bit of confused about Parallel.ForEach .
What is Parallel.ForEach and what does it exactly do?
Please don't reference any MSDN link.
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python: Change the scripts working directory to the script's own directory
... __file__ fails in "frozen" programs (created using py2exe, PyInstaller, cx_Freeze). sys.argv[0] works. @ChrisDown: If you want to follow symlinks; os.path.realpath() could be used.
– jfs
Apr 5 '14 at 20:12
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IN vs OR in the SQL WHERE Clause
...ds a much more complex evaluation process than the IN construct because it allows many conditions, not only equals like IN.
Here is a like of what you can use with OR but that are not compatible with IN:
greater. greater or equal, less, less or equal, LIKE and some more like the oracle REGEXP_LIKE...
Is it possible to cast a Stream in Java 8?
...? Say I have a list of objects, I can do something like this to filter out all the additional objects:
4 Answers
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GCD to perform task in main thread
I have a callback which might come from any thread. When I get this callback, then I would like to perform a certain task on the main thread.
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How does mockito when() invocation work?
...ou mock a class using the mock method of the Mockito class, this is essentially what happens:
Mockito.mock delegates to org.mockito.internal.MockitoCore.mock, passing the default mock settings as a parameter.
MockitoCore.mock delegates to org.mockito.internal.util.MockUtil.createMock
The MockUtil ...
Log4Net, how to add a custom field to my logging
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@DumbDev, usually you will use the Thread context. The GlobalContext is useful to set properties that do not change very often.
– Marcelo De Zen
Mar 10 '15 at 19:06
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