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How to extract the decision rules from scikit-learn decision-tree?
...e output for a tree that is trying to return its input, a number between 0 and 10.
def tree(f0):
if f0 <= 6.0:
if f0 <= 1.5:
return [[ 0.]]
else: # if f0 > 1.5
if f0 <= 4.5:
if f0 <= 3.5:
return [[ 3.]]
else: # if f0 > 3.5
...
Git format-patch to be svn compatible?
...ch with git diff --no-prefix master..branch > somefile.diff, the master and branch part are optional, depends how you want to get your diffs.
Send it wherever and apply with patch -p0 < somefile.diff.
It always seems to work fine for me and seems to be the simplest method that I've come acr...
How does RewriteBase work in .htaccess
...
In my own words, after reading the docs and experimenting:
You can use RewriteBase to provide a base for your rewrites. Consider this
# invoke rewrite engine
RewriteEngine On
RewriteBase /~new/
# add trailing slash if missing
rewriteRule ^(([a-z0-9\-...
Converting an array of objects to ActiveRecord::Relation
... ActiveRecord::Relation since a Relation is just a builder for a SQL query and its methods do not operate on actual data.
However, if what you want is a relation then:
for ActiveRecord 3.x, don’t call all and instead call scoped, which will give back a Relation which represents the same records...
Calculate distance between two latitude-longitude points? (Haversine formula)
How do I calculate the distance between two points specified by latitude and longitude?
41 Answers
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Capturing multiple line output into a Bash variable
...y as it is represented in the variable — newlines, tabs, multiple blanks and all — whereas (2) the unquoted version (echo $RESULT) replaces each sequence of one or more blanks, tabs and newlines with a single space. Thus (1) preserves the shape of the input variable, whereas (2) creates a potent...
Surrogate vs. natural/business keys [closed]
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Both. Have your cake and eat it.
Remember there is nothing special about a primary key, except that it is labelled as such. It is nothing more than a NOT NULL UNIQUE constraint, and a table can have more than one.
If you use a surrogate key, y...
Decompile .smali files on an APK [duplicate]
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No, APK Manager decompiles the .dex file into .smali and binary .xml to human readable xml.
The sequence (based on APK Manager 4.9) is 22 to select the package, and then 9 to decompile it. If you press 1 instead of 9, then you will just unpack it (useful only if you want to e...
Android Studio - How to Change Android SDK Path
When I open Android SDK Manager from Android Studio , the SDK Path displayed is:
29 Answers
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File Upload without Form
...g POST method using jQuery. The input tag is not inside any form tag. It stands individually. So I don't want to use jQuery plugins like 'ajaxForm' or 'ajaxSubmit'.
...