OPEN-SOURCE SCRIPT
Schmitt Hysteresis Momentum [forexobroker]

Schmitt Hysteresis Momentum applies a textbook control-theory Schmitt trigger to rate of change. Two ATR-scaled thresholds (one positive, one negative) form a hysteresis band: state flips up only when RoC clears the upper threshold, flips down only when RoC clears the lower. Within a held state, EMA crosses provide entry timing — multiple entries per state without flip-flop.
🔶 ALGORITHM
1. RoC = (close - close[N]) / close[N].
2. Adaptive thresholds: upper = +k * (atr / close); lower = -k * (atr / close).
3. State machine: state := +1 if RoC > upper, -1 if RoC < lower, hold previous otherwise.
4. EMA cross within state direction provides the entry trigger.
🔶 SIGNAL LOGIC
- Buy: state == +1 AND close crosses EMA up AND not already long AND cooldown elapsed AND barstate.isconfirmed.
- Sell: state == -1 AND close crosses EMA down.
- Position-lock state machine.
🔶 INPUTS
- RoC Lookback (default 10)
- Pullback EMA Length (default 8)
- Threshold k x ATR Pct (default 0.30)
- Cooldown Bars (default 4)
- Visual: dashboard, glow, EMA toggle, buy / sell colors
🔶 ALERTS
SHM Buy, SHM Sell, SHM Any Signal, SHM Bull Lock, SHM Bear Lock, SHM Upper Cross, SHM Lower Cross, SHM EMA Up, SHM Webhook JSON.
🔶 LIMITATIONS
- Hysteresis prevents flip-flop but slightly lags one-shot regime changes vs single-threshold logic.
- ATR-scaled thresholds are stationarised by atr_pct; very low-volatility periods can leave the state stuck for many bars without entries.
- RoC lookback length affects responsiveness; defaults assume 5m to 1H bars.
- This is a momentum-state engine, not a trend-strength meter; it tells you what regime you are in, not how strong it is.
🔶 ALGORITHM
1. RoC = (close - close[N]) / close[N].
2. Adaptive thresholds: upper = +k * (atr / close); lower = -k * (atr / close).
3. State machine: state := +1 if RoC > upper, -1 if RoC < lower, hold previous otherwise.
4. EMA cross within state direction provides the entry trigger.
🔶 SIGNAL LOGIC
- Buy: state == +1 AND close crosses EMA up AND not already long AND cooldown elapsed AND barstate.isconfirmed.
- Sell: state == -1 AND close crosses EMA down.
- Position-lock state machine.
🔶 INPUTS
- RoC Lookback (default 10)
- Pullback EMA Length (default 8)
- Threshold k x ATR Pct (default 0.30)
- Cooldown Bars (default 4)
- Visual: dashboard, glow, EMA toggle, buy / sell colors
🔶 ALERTS
SHM Buy, SHM Sell, SHM Any Signal, SHM Bull Lock, SHM Bear Lock, SHM Upper Cross, SHM Lower Cross, SHM EMA Up, SHM Webhook JSON.
🔶 LIMITATIONS
- Hysteresis prevents flip-flop but slightly lags one-shot regime changes vs single-threshold logic.
- ATR-scaled thresholds are stationarised by atr_pct; very low-volatility periods can leave the state stuck for many bars without entries.
- RoC lookback length affects responsiveness; defaults assume 5m to 1H bars.
- This is a momentum-state engine, not a trend-strength meter; it tells you what regime you are in, not how strong it is.
Skrip sumber terbuka
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All scripts & content provided by Forexobroker are for informational & educational purposes only.
Penafian
Maklumat dan penerbitan adalah tidak bertujuan, dan tidak membentuk, nasihat atau cadangan kewangan, pelaburan, dagangan atau jenis lain yang diberikan atau disahkan oleh TradingView. Baca lebih dalam Terma Penggunaan.
Skrip sumber terbuka
Dalam semangat TradingView sebenar, pencipta skrip ini telah menjadikannya sumber terbuka, jadi pedagang boleh menilai dan mengesahkan kefungsiannya. Terima kasih kepada penulis! Walaupuan anda boleh menggunakan secara percuma, ingat bahawa penerbitan semula kod ini tertakluk kepada Peraturan Dalaman.
🔵Gain access to our powerful tools : forexobroker.com/tv
🔵Join our free telegram for updates : t.me/dominicwalsfxhtrader
All scripts & content provided by Forexobroker are for informational & educational purposes only.
🔵Join our free telegram for updates : t.me/dominicwalsfxhtrader
All scripts & content provided by Forexobroker are for informational & educational purposes only.
Penafian
Maklumat dan penerbitan adalah tidak bertujuan, dan tidak membentuk, nasihat atau cadangan kewangan, pelaburan, dagangan atau jenis lain yang diberikan atau disahkan oleh TradingView. Baca lebih dalam Terma Penggunaan.