OptionalcolumnOptionalfastFast EMA span in bars. Default 12.
OptionalprefixColumn-family prefix — appends ${prefix}Line / ${prefix}Signal /
${prefix}Hist. Default 'macd'.
OptionalsignalSignal EMA span in bars, taken over the MACD line. Default 9.
OptionalslowSlow EMA span in bars. Default 26.
Source column. Default
'close'.