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Lambda Function#

Run a stateless lambda function (anonymous function) over the samples. The lambda function receives the sample matrix as an argument and should return the transformed matrix.

Interfaces: Transformer

Compatibility Depends on callback function

Parameters#

#	Param	Default	Type	Description
1	lambda		callable	The lambda function to run over the sample matrix.

Additional Methods#

This transformer does not have any additional methods.

Example#

use Rubix\ML\Transformers\LambdaFunction;

$transformer = new LambdaFunction(function ($samples) {
    return array_map(function ($sample) {
        $total = array_sum($sample);
        $mean = $total / count($sample);

        return [$total, $mean];
    }, $samples);
});