From a1bcf70fc975a9eb44d7f10f1fe3ab31fce32fe8 Mon Sep 17 00:00:00 2001
From: dilpath <dilan.private+github@outlook.com>
Date: Mon, 18 Nov 2024 18:20:13 +0100
Subject: [PATCH] closes #44

---
 petab_select/constants.py | 2 ++
 petab_select/model.py     | 6 ++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/petab_select/constants.py b/petab_select/constants.py
index bba90ac..b56e8a4 100644
--- a/petab_select/constants.py
+++ b/petab_select/constants.py
@@ -141,6 +141,8 @@ class Criterion(str, Enum):
     LLH = "LLH"
     #: The negative log-likelihood.
     NLLH = "NLLH"
+    #: The sum of squared residuals.
+    SSR = "SSR"
 
 
 #: Methods that move through model space by taking steps away from some model.
diff --git a/petab_select/model.py b/petab_select/model.py
index d1c00c2..6439106 100644
--- a/petab_select/model.py
+++ b/petab_select/model.py
@@ -274,9 +274,11 @@ def compute_criterion(
             criterion_value = self.criterion_computer(criterion)
             self.set_criterion(criterion, criterion_value)
             result = criterion_value
-        except ValueError:
+        except ValueError as err:
             if raise_on_failure:
-                raise
+                raise ValueError(
+                    f"Insufficient information to compute criterion `{criterion}`."
+                ) from err
             result = None
         return result