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How are feature_importances in RandomForestClassifier determined?
... out, which attributes/dates contribute to the result to what extent. Therefore I am just using the feature_importances_ , which works well for me.
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Resize image in PHP
...o write some PHP code which automatically resizes any image uploaded via a form to 147x147px, but I have no idea how to go about it (I'm a relative PHP novice).
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Getting a map() to return a list in Python 3.x
...ecause you can still iterate over the map object like so:
# Prints "ABCD"
for ch in map(chr,[65,66,67,68]):
print(ch)
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How can I setup & run PhantomJS on Ubuntu?
... had to add one additional symlink to /usr/bin/, and I did direct symlinks for all 3 - see below.
I'm installing on Ubuntu server Natty Narwhal.
This is exactly what I did.
cd /usr/local/share
sudo wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.7-linux-x86_64.tar.bz2
sudo tar ...
Python Dictionary Comprehension
Is it possible to create a dictionary comprehension in Python (for the keys)?
8 Answers
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How to convert An NSInteger to an int?
For example when passing a value message to an NSInteger instance like so
4 Answers
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Bin size in Matplotlib (Histogram)
... + binwidth, binwidth))
Added to original answer
The above line works for data filled with integers only. As macrocosme points out, for floats you can use:
import numpy as np
plt.hist(data, bins=np.arange(min(data), max(data) + binwidth, binwidth))
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Why use apparently meaningless do-while and if-else statements in macros?
...ave a more complicated body of code that needs to go in its own block, say for example to declare local variables. In the most general case the solution is to use something like do ... while to cause the macro to be a single statement that takes a semicolon without confusion.
#define BAR(X) do { \...
How do I pass a method as a parameter in Python
...t a little bit more complicated. method2 has to be written with a bit of information about how to pass arguments to method1, and it needs to get values for those arguments from somewhere. For instance, if method1 is supposed to take one argument:
def method1(self, spam):
return 'hello ' + str(sp...
How do you run a Python script as a service in Windows?
I am sketching the architecture for a set of programs that share various interrelated objects stored in a database. I want one of the programs to act as a service which provides a higher level interface for operations on these objects, and the other programs to access the objects through that servic...