From 72662994f4aadc9295b75f704a3c2bbffecf6ae7 Mon Sep 17 00:00:00 2001
From: Ramon Winterhalder <35335120+ramonpeter@users.noreply.github.com>
Date: Fri, 24 Apr 2026 13:19:34 +0200
Subject: [PATCH 1/2] Handle zero or non-finite error in __str__ method

Relevant fix when working with Bayesian Neural networks
which by construction gets std=0 for some validphys quantities
---
 src/reportengine/floatformatting.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/reportengine/floatformatting.py b/src/reportengine/floatformatting.py
index 235d84f..7cfb54e 100644
--- a/src/reportengine/floatformatting.py
+++ b/src/reportengine/floatformatting.py
@@ -83,5 +83,8 @@ class ValueErrorTuple(NamedTuple):
     value: numbers.Real
     error: numbers.Real
     def __str__(self):
+        if self.error == 0 or not np.isfinite(np.log10(self.error)):
+            value = int(self.value) if self.value == int(self.value) else round(self.value, 4)
+            return f'{value}±0'
         valstr, errstr = format_value_error(self.value, self.error)
         return f'{valstr}±{errstr}'

From 1956c99c4429579245b462e277fcf5d25805e462 Mon Sep 17 00:00:00 2001
From: Ramon Winterhalder <35335120+ramonpeter@users.noreply.github.com>
Date: Fri, 24 Apr 2026 13:26:09 +0200
Subject: [PATCH 2/2] Handle non-finite values in string representation

Fix the failing build
---
 src/reportengine/floatformatting.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/reportengine/floatformatting.py b/src/reportengine/floatformatting.py
index 7cfb54e..402b3ab 100644
--- a/src/reportengine/floatformatting.py
+++ b/src/reportengine/floatformatting.py
@@ -84,6 +84,8 @@ class ValueErrorTuple(NamedTuple):
     error: numbers.Real
     def __str__(self):
         if self.error == 0 or not np.isfinite(np.log10(self.error)):
+            if not np.isfinite(self.value):
+                return f'{self.value}±0'
             value = int(self.value) if self.value == int(self.value) else round(self.value, 4)
             return f'{value}±0'
         valstr, errstr = format_value_error(self.value, self.error)