timePeriod can be from 1 (not from 2)
Working correctly, and tis is common need to calculate change from previos period.
trader_rocr
(PECL trader >= 0.2.0)
trader_rocr — Rate of change ratio: (price/prevPrice)
Descrierea
trader_rocr
( array
$real
[, int $timePeriod
] ) : array
Parametri
-
real -
Un tablou cu valori reale.
-
timePeriod -
Numărul perioadei. Domeniul valorilor admisibile este de la 2 până la 100000.
Valorile întoarse
Returns an array with calculated data or false on failure.
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mityaev_ivan at mail dot ru ¶
10 years ago
