Hello there,
Is someone have tried the function and can tell what is the return size digits after the decimal point, meaning what is the precision of the returned answer ?
Best,
laye
(PECL trader >= 0.2.0)
trader_ema — Exponential Moving Average
$real
[, integer $timePeriod
] )
realArray of real values.
timePeriodNumber of period. Valid range from 2 to 100000.
Returns an array with calculated data or false on failure.
Hello there,
Is someone have tried the function and can tell what is the return size digits after the decimal point, meaning what is the precision of the returned answer ?
Best,
laye
the trader_ema() function does'nt work correctly , it calculate just average of last period entries. Follow the following code for trader_ema:
function EMACalculator($limit,$array)
{
$EMA_previous_day = $array[0];
//print_r($array);
$multiplier1 = (2/$limit+1);
$EMA[]=array();
$EMA = $array[0];
$Close= $array[1];
while($limit)
{
//echo"EMA is $EMA\n";
$EMA = ($Close - $EMA_previous_day) * $multiplier1 + $EMA_previous_day;
$EMA_previous_day= $EMA;
$limit--;
}
return $EMA;
}
where $limit accept the period of ema and $array : accept array of data for ema calculation.