class FunctionFeatures implements FeatureFactoryInterface
An implementation of FeatureFactoryInterface that takes any number of callables (function names, closures, array($object,'func_name'), etc.) and calls them consecutively using the return value as a feature's unique string.
The class can model both feature frequency and presence
Methods
| __construct(array $f = array()) | ||
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modelFrequency()
Set the feature factory to model frequency instead of presence |
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modelPresence()
Set the feature factory to model presence instead of frequency |
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add(callable $feature)
Add a function as a feature |
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| array |
getFeatureArray(string $class, DocumentInterface $d)
Compute the features that "fire" for a given class,document pair. |
Details
at line 24
public
__construct(array $f = array())
at line 32
public
modelFrequency()
Set the feature factory to model frequency instead of presence
at line 39
public
modelPresence()
Set the feature factory to model presence instead of frequency
at line 48
public
add(callable $feature)
Add a function as a feature
at line 65
public array
getFeatureArray(string $class, DocumentInterface $d)
Compute the features that "fire" for a given class,document pair.
Call each function one by one. Eliminate each return value that
evaluates to false. If the return value is a string add it to
the feature set. If the return value is an array iterate over it
and add each value to the feature set.