trader_ema in wrong calculate value
this return just simple moving avrage
for get ema correct use this code
$number is data array and $n is number of period
example:
$number[0] => last value
$number[n] =>first value
function exponentialMovingAverage(array $numbers, int $n): array
{
$numbers=array_reverse($numbers);
$m = count($numbers);
$α = 2 / ($n + 1);
$EMA = [];
// Start off by seeding with the first data point
$EMA[] = $numbers[0];
// Each day after: EMAtoday = α⋅xtoday + (1-α)EMAyesterday
for ($i = 1; $i < $m; $i++) {
$EMA[] = ($α * $numbers[$i]) + ((1 - $α) * $EMA[$i - 1]);
}
$EMA=array_reverse($EMA);
return $EMA;
}
