Address feedback

copulas/visualization.py

@@ -51,6 +51,8 @@ def _generate_1d_plot(data, title, labels, colors):
         plot_bgcolor=PlotConfig.BACKGROUND_COLOR,
         font={'size': PlotConfig.FONT_SIZE},
         showlegend=True if labels[0] else False,
+        xaxis_title='value',
+        yaxis_title='frequency'
     )
 
     return fig
@@ -70,6 +72,13 @@ def dist_1d(data, title=None, label=None):
     Returns:
         plotly.graph_objects._figure.Figure
     """
+    if not title:
+        title = 'Data'
+        if isinstance(data, pd.DataFrame):
+            title += f" for column '{data.columns[0]}'"
+        elif isinstance(data, pd.Series) and data.name:
+            title += f" for column '{data.name}'"
+
     return _generate_1d_plot(
         data=[data],
         title=title,
@@ -92,6 +101,13 @@ def compare_1d(real, synth, title=None):
     Returns:
         plotly.graph_objects._figure.Figure
     """
+    if not title:
+        title = 'Real vs. Synthetic Data'
+        if isinstance(real, pd.DataFrame):
+            title += f" for column '{real.columns[0]}'"
+        elif isinstance(real, pd.Series) and real.name:
+            title += f" for column '{real.name}'"
+
     return _generate_1d_plot(
         data=[real, synth],
         title=title,
@@ -162,6 +178,13 @@ def scatter_2d(data, columns=None, title=None):
     data = data.copy()
     data['Data'] = 'Real'
 
+    if not title:
+        title = 'Data'
+        if columns:
+            title += f" for columns '{columns[0]}' and '{columns[1]}'"
+        elif isinstance(data, pd.DataFrame):
+            title += f" for columns '{data.columns[0]}' and '{data.columns[1]}'"
+
     return _generate_scatter_2d_plot(
         data=data,
         columns=columns,
@@ -191,6 +214,13 @@ def compare_2d(real, synth, columns=None, title=None):
     synth['Data'] = 'Synthetic'
     data = pd.concat([real, synth], axis=0, ignore_index=True)
 
+    if not title:
+        title = 'Real vs. Synthetic Data'
+        if columns:
+            title += f" for columns '{columns[0]}' and '{columns[1]}'"
+        elif isinstance(data, pd.DataFrame):
+            title += f" for columns '{data.columns[0]}' and '{data.columns[1]}'"
+
     return _generate_scatter_2d_plot(
         data=data,
         columns=columns,
@@ -256,7 +286,7 @@ def scatter_3d(data, columns=None, title=None):
     Args:
         data (pandas.DataFrame):
             The table data. Must have at least 3 columns.
-        column_names (list[string]):
+        columns (list[string]):
             The names of the three columns to plot.
         title (str):
             The title of the plot.
@@ -267,6 +297,14 @@ def scatter_3d(data, columns=None, title=None):
     data = data.copy()
     data['Data'] = 'Real'
 
+    if not title:
+        title = 'Data'
+        if columns:
+            title += f" for columns '{columns[0]}', '{columns[1]}' and '{columns[2]}'"
+        elif isinstance(data, pd.DataFrame):
+            title += \
+                f" for columns '{data.columns[0]}', '{data.columns[1]}' and '{data.columns[2]}'"
+
     return _generate_scatter_3d_plot(
         data=data,
         columns=columns,
@@ -293,6 +331,14 @@ def compare_3d(real, synth, columns=None, title=None):
     synth['Data'] = 'Synthetic'
     data = pd.concat([real, synth], axis=0, ignore_index=True)
 
+    if not title:
+        title = 'Real vs. Synthetic Data'
+        if columns:
+            title += f" for columns '{columns[0]}', '{columns[1]}' and '{columns[2]}'"
+        elif isinstance(data, pd.DataFrame):
+            title += \
+                f" for columns '{data.columns[0]}', '{data.columns[1]}' and '{data.columns[2]}'"
+
     return _generate_scatter_3d_plot(
         data=data,
         columns=columns,