How to write code for Williams Accumulation Distribution, Commodity Channel Index (Period 14), Welles Wilder Smoothing (Period 14) and Time Series Moving Average (Period 14)?

For Intraday

Williams’ Accumulation / Distribution

WAD(14) < 1

Commodity Channel Index (CCI)

CCI(14, SIMPLE) > 0

Welles Wilder Smoothing

WWS(CLOSE, 14)

Time Series Moving Average

TSMA(CLOSE, 14)
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