MCordingley\Regression\Observations::getFeatureCount PHP Метод

    public function getFeatureCount() : int
    {
        return $this->featureCount;
    }

 /**
  * @param Observations $observations
  * @return array
  */
 public final function regress(Observations $observations) : array
 {
     $coefficients = array_fill(0, $observations->getFeatureCount(), 0.0);
     do {
         $gradient = $this->calculateGradient($observations, $coefficients);
         $this->schedule->update($gradient);
         $coefficients = $this->updateCoefficients($coefficients, $gradient);
     } while (!$this->stoppingCriteria->converged($gradient, $coefficients));
     return $coefficients;
 }