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(PECL trader >= 0.2.0)
trader_sar — Parabolic SAR
$high
, array $low
[, float $acceleration
[, float $maximum
]] )
high
高价,浮点数数组。
low
低价,浮点数数组。
acceleration
Acceleration Factor used up to the Maximum value. Valid range from 0 to TRADER_REAL_MAX.
maximum
Acceleration Factor Maximum value. Valid range from 0 to TRADER_REAL_MAX.
Returns an array with calculated data or false on failure.