I’m trying to convert REGLINW function:
<code>=REGLINW(W$118:W119;U$118:U119;W$114)</code>
<code>=REGLINW(W$118:W119;U$118:U119;W$114)</code>
=REGLINW(W$118:W119;U$118:U119;W$114)to php (details in the screenshot).
I tried to use LeastSquares() and train function unfortunately the results for the first months are a little different
<code>$regression = new LeastSquares();
$regression->train($x, $y);
$targets['extrapolated_results'][$extrapolatedPeriod] = intval($regression->predict([$allDays]));</code>
<code>$regression = new LeastSquares();
$regression->train($x, $y);
$targets['extrapolated_results'][$extrapolatedPeriod] = intval($regression->predict([$allDays]));</code>
$regression = new LeastSquares();
$regression->train($x, $y);
$targets['extrapolated_results'][$extrapolatedPeriod] = intval($regression->predict([$allDays]));