Functions accepting variable periods

The following functions support variable periods (where periods parameter can be array and change from bar to bar):

• AMA
• AMA2
• DEMA
• HHV
• HHVBars
• IIR
• LinRegSlope
• LinearReg
• LinRegIntercept
• LLV
• LLVBars
• MA
• PercentRank
• Ref
• StdErr
• StDev
• Sum
• TEMA
• TSF
• WMA