Uploaded investment_signal script

investment_signal.py

@@ -0,0 +1,45 @@
+# investment_signal.py
+def get_investment_signal(ma, close_price, rsi, macd, lower_band, upper_band):
+    """
+    Simple rule-based decision:
+      - RSI < 30 => Buy, RSI > 70 => Sell
+      - MACD > 0 bullish, < 0 bearish
+      - Price vs MA trend confirmation
+      - Price vs Bollinger Bands for extremes
+    Returns: (signal: 'Buy'|'Hold'|'Sell', reason: str)
+    """
+    reasons = []
+    score = 0
+
+    # RSI
+    if rsi < 30:
+        score += 2; reasons.append("RSI indicates oversold (<30)")
+    elif rsi > 70:
+        score -= 2; reasons.append("RSI indicates overbought (>70)")
+    else:
+        reasons.append("RSI is neutral (30–70)")
+
+    # MACD
+    if macd > 0:
+        score += 1; reasons.append("MACD shows bullish momentum (>0)")
+    else:
+        score -= 1; reasons.append("MACD shows bearish momentum (<0)")
+
+    # Trend vs MA
+    if close_price > ma:
+        score += 1; reasons.append("Price above MA (uptrend)")
+    else:
+        score -= 1; reasons.append("Price below MA (downtrend)")
+
+    # Bollinger extremes
+    if close_price < lower_band:
+        score += 1; reasons.append("Price below lower Bollinger Band (potential rebound)")
+    elif close_price > upper_band:
+        score -= 1; reasons.append("Price above upper Bollinger Band (potential pullback)")
+
+    if score >= 2:
+        return "Buy", "; ".join(reasons)
+    elif score <= -2:
+        return "Sell", "; ".join(reasons)
+    else:
+        return "Hold", "; ".join(reasons)