fix filtering dataframes, fix citation generator

filter_dataframe.py

@@ -72,10 +72,14 @@ def filter_dataframe(df: pd.DataFrame, numeric_as_categorical: bool = True) -> p
                 if is_integer_dtype(df[column]):
                     _min = int(df[column].min())
                     _max = int(df[column].max())
+                    if _min == _max:
+                        _max += 1
                     step = 1
                 else:
                     _min = float(df[column].min())
                     _max = float(df[column].max())
+                    if _min == _max:
+                        _max += 0.1
                     step = (_max - _min) / 100
                 user_num_input = right.slider(
                     f"Values for {column}",

pages/2_Dataset_Statistics_&_citation_export.py

@@ -22,8 +22,8 @@ _MMS_CITATION = """\
 CITATION_SEPARATOR = "% " + ("-" * 90) + "\n\n"
 
 def export_citations(df: pd.DataFrame):
-    dataset_names = df.original_dataset.tolist()
-    dataset_citations = df.citation.tolist()
+    dataset_names = df["Original Dataset"].tolist()
+    dataset_citations = df["Citation"].tolist()
 
     df = pd.DataFrame({"dataset": dataset_names, "citation": dataset_citations})
     citations_grouped_df = df.groupby("citation").agg({"dataset": lambda x: ", ".join(x)}).reset_index().sort_values(by="dataset")