hi Bruce , is their a difference between ( smi ergodic ) and smi ( only ) and if their is, do you have a pcf

for a short period of 3 and a long period of 5. Because john cater use a smi of that period on is platform and if i put a same period on the smi ergodic it does not macth

The SMI Ergodic indicator and Stochastic Momentum Index indicator are different, but SMI Ergodic would be the version with only 2 periods which can be set. The Stochastic Momentum Index indicator usually has 3 or 4 periods which can be set.

bruce would you have the formula to build a smi ( only)

Not for a plain SMI 3,5... because it would need more periods specified than just two.

SMI Formula
Stocastic Momentum Index
formula help
Stochastic Momentum Index related formula
SMI BEARISH AND BULLISH CROSSOVERS
Stochastic Momentum Index

BRUCE COULD YOU DO A SMI 3,5,3,3

You can add the following as a Custom PCF Indicator.

200 * (2 * (XAVGC5 - (XAVG(MAXH3,5) + XAVG(MINL3,5)) / 2) - (XAVGC3 - (XAVG(MAXH3,3) + XAVG(MINL3,3)) / 2)) / (2 * (XAVG(MAXH3,5) - XAVG(MINL3,5)) - (XAVG(MAXH3,3) - XAVG(MINL3,3)))

With a 3-period exponential moving average added as a signal line.

Thanks Bruce.works perfectly!!!

You're welcome.