Fix zero-score bug

Author: mrvisscher

activity_browser/bwutils/multilca.py

@@ -547,7 +547,7 @@ def join_df_with_metadata(
         df.columns = cls.get_labels(df.columns, fields=y_fields)
         # Coerce index to MultiIndex if it currently isn't
         if not isinstance(df.index, pd.MultiIndex):
-            df.index = pd.MultiIndex.from_tuples(ids_to_keys(df.index))
+            df.index = pd.MultiIndex.from_tuples(ids_to_keys(df.index), names=[None, None])
 
         # get metadata for rows
         keys = [k for k in df.index if k in AB_metadata.index]

activity_browser/layouts/pages/lca_results/plots.py

@@ -200,8 +200,10 @@ def plot(self, df: pd.DataFrame, unit: str = None):
         )  # get rid of all non-numeric columns (metadata)
         if "Score" in dfp.index:
             dfp.drop("Score", inplace=True)
-        # drop rows if all values are 0
-        dfp = dfp.loc[~(dfp == 0).all(axis=1)]
+        # drop rows if all values are 0 except for "Rest (+)" and "Rest (-)"
+        rows_to_drop = dfp.index[(dfp == 0).all(axis=1) & ~dfp.index.isin(["Rest (+)", "Rest (-)"])]
+        # Drop those rows
+        dfp = dfp.drop(rows_to_drop)
 
         self.ax.clear()
         canvas_width_inches, canvas_height_inches = self.get_canvas_size_in_inches()