(PECL trader >= 0.2.0)
trader_willr — Williams' %R
$high
, array $low
, array $close
[, int $timePeriod
] ) : array
high
高値。実数値の配列。
low
安値。実数値の配列。
close
終値。実数値の配列。
timePeriod
Number of period. Valid range from 2 to 100000.
Returns an array with calculated data or false on failure.