trader_rocr

(PECL trader >= 0.2.0)

trader_rocrRate of change ratio: (price/prevPrice)

Opis

trader_rocr ( array $real [, int $timePeriod ] ) : array

Parametry

real

Tablica wartości zmiennoprzecinkowych.

timePeriod

Numer okresu. Wartość z zakresu od 2 do 100000.

Zwracane wartości

Returns an array with calculated data or false on failure.

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mityaev_ivan at mail dot ru
6 years ago
timePeriod can be from 1 (not from 2)
Working correctly, and tis is common need to calculate change from previos period.
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