Add missing example file

examples/movemean.py

@@ -0,0 +1,24 @@
+"""
+A moving average function using @guvectorize.
+"""
+
+import numpy as np
+
+from numba import guvectorize
+
+@guvectorize(['void(float64[:], intp[:], float64[:])'], '(n),()->(n)')
+def move_mean(a, window_arr, out):
+    window_width = window_arr[0]
+    asum = 0.0
+    count = 0
+    for i in range(window_width):
+        asum += a[i]
+        count += 1
+        out[i] = asum / count
+    for i in range(window_width, len(a)):
+        asum += a[i] - a[i - window_width]
+        out[i] = asum / count
+
+arr = np.arange(20, dtype=np.float64).reshape(2, 10)
+print(arr)
+print(move_mean(arr, 3))