public createDesignMatrix ( mixed $xs ) : |
||
$xs | mixed | |
return |
public function createDesignMatrix($xs) : Matrix
{
if (is_int($xs) || is_float($xs)) {
$xs = [$xs];
}
$X = new VandermondeMatrix($xs, $this->p + 1);
if ($this->fit_constant == 0) {
$X = $X->columnExclude(0);
}
return $X;
}