Fix bug when grouping on FACIES for non-standard static sources

CHANGELOG.md

@@ -6,6 +6,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [UNRELEASED] - YYYY-MM-DD
+
+### Fixed
+- [#1287](https://github.com/equinor/webviz-subsurface/pull/1287) - Fixed bug when grouping on FACIES for non-standard static sources.
+
+## [0.2.25] - 2024-03-18
+
 ### Added
 - [#1266](https://github.com/equinor/webviz-subsurface/pull/1266) - Added waterfall plot for analysing volume changes in `VolumetricAnalysis`.
 

webviz_subsurface/_models/inplace_volumes_model.py

@@ -357,9 +357,10 @@ def get_df(
             filters_excl_facies, groups, parameters, properties
         )
         # Remove "FACIES" to compute facies fraction for the individual groups
-        groups = [x for x in groups if x != "FACIES"]
-        df = dframe.groupby(groups) if groups else dframe
-        dframe["FACIES_FRACTION"] = df["BULK"].transform(lambda x: x / x.sum())
+        if "FACIES_FRACTION" in self.property_columns:
+            groups = [x for x in groups if x != "FACIES"]
+            df = dframe.groupby(groups) if groups else dframe
+            dframe["FACIES_FRACTION"] = df["BULK"].transform(lambda x: x / x.sum())
 
         return dframe[dframe["FACIES"].isin(filters["FACIES"])] if filters else dframe