Add SMA indicator

src/naiback/indicators/__init__.py

@@ -1,5 +1,6 @@
 
 from .ema import EMA
+from .sma import SMA
 from .rsi import RSI
 from .intradaybarnumber import IntradayBarNumber
 from .highest import Highest,HighestValue

src/naiback/indicators/sma.py

@@ -0,0 +1,9 @@
+
+import numpy as np
+
+def SMA(data, period):
+    result = np.zeros(len(data))
+    for i in range(1, len(data)):
+        result[i] = sum(data[max(0, i-period+1):(i + 1)]) / period
+    return result
+