Silence warning when df is zero length in compute blame

64602dd7 · connor.hainje@pnnl.gov · 2ac70dfb · 64602dd7
Commit 64602dd7 authored Dec 13, 2021 by connor.hainje@pnnl.gov
--- a/packages/pidplots/pidplots/compute.py
+++ b/packages/pidplots/pidplots/compute.py
@@ -130,7 +130,8 @@ def compute_blame_numbers(df):
 def compute_blame(df):
    nums = compute_blame_numbers(df)
    top = np.argmax(nums)
-    return top, nums[top] / len(df)
+    frac = nums[top] / len(df) if len(df) > 0 else np.nan
+    return top, frac


 def compute_blame_in_all_bins(df):