A-M baby

Task/Averages-Simple-moving-average/Groovy/averages-simple-moving-average.groovy

@@ -0,0 +1,15 @@
+def simple_moving_average = { size ->
+    def nums = []
+    double total = 0.0
+    return { newElement ->
+        nums += newElement
+        oldestElement = nums.size() > size ? nums.remove(0) : 0
+        total += newElement - oldestElement
+        total / nums.size()
+    }
+}
+
+ma5 = simple_moving_average(5)
+
+(1..5).each{ printf( "%1.1f ", ma5(it)) }
+(5..1).each{ printf( "%1.1f ", ma5(it)) }