[quote=Bruce_L]Most of the stuff mentioned in my Saturday, September 10, 2005 8:19:59 AM still applies (hopefully that doesn't include the part about being incorrect). You will want to check Center Zero Line when plotting any of the formulas below as a Custom Indicator. The formulas plot on different scales, so the first two can't be compared visibly or combined as a Custom Indicator replacement for MACD. As a result, DEMA MACD plotted as a "Histogram" is probably the best visible version of the indicator (but will plot as a line).

DEMA MACD Line (8,17):
2 * XAVGC8 + XAVG(XAVGC17,17) - 2 * XAVGC17 - XAVG(XAVGC8,8)

DEMA MACD Trigger (8,17,6):
207945 / 5324 * XAVGC6 + 21 / 4 * XAVG(XAVGC8,8) + 96 / 121 * XAVG(XAVGC17,17) + 4905 / 484 * XAVG(XAVGC6,6) - 217 / 4 * XAVGC8 - 1312 / 1331 * XAVGC17

DEMA MACD Histogram (8,17,6):
225 / 4 * XAVGC8 + 25 / 121 * XAVG(XAVGC17,17) - 1350 / 1331 * XAVGC17 - 207945 / 5324 * XAVGC6 - 25 / 4 * XAVG(XAVGC8,8) - 4905 / 484 * XAVG(XAVGC6,6)



Dear Math Wizards: Could one of you confirm the changes that would be required for a Trigger Line Formula with the parameters of (8,17,9) instead of the (8,17,6) shown above. I can guess but I just want to be sure. Thanks.