no data means no good data

2020-07-02 12:30:54 +02:00
parent 06eb8bae7b
commit d4515028ef
1 changed files with 3 additions and 0 deletions
@@ -15,6 +15,9 @@ def within_fraction(data, vmin, vmax):
    ntotal = len(data)
    ngood  = sum(good)

+    if not ntotal:
+        return 0
+
    fraction = ngood / ntotal
    return fraction