From 51fab5fbf3379e98c3b2752654667f47970bc8a9 Mon Sep 17 00:00:00 2001
From: Thomas Oettli <spacefreak@noop.ch>
Date: Sat, 30 Nov 2024 02:29:58 +0100
Subject: [PATCH] reset average value to 0.0 if all values in serie are absent

---
 pkg/expr/helper/helper.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/expr/helper/helper.go b/pkg/expr/helper/helper.go
index d90c1ac1..3a2cf275 100644
--- a/pkg/expr/helper/helper.go
+++ b/pkg/expr/helper/helper.go
@@ -210,6 +210,8 @@ func SummarizeValues(f string, values []float64, absent []bool) (float64, bool,
 		}
 		if total > 0 {
 			rv /= float64(total)
+		} else {
+			rv = 0.0
 		}
 	case "max":
 		rv = math.Inf(-1)