adds docstrings

app/analysis/plot_bar_peak_hours.py

@@ -9,17 +9,40 @@ import matplotlib
 matplotlib.use('Agg')
 
 class PlotPeakHours(BasePlotAnalysis):
+    """
+    Class for analyzing peak activity hours and generating a bar chart.
+
+    Attributes:
+    name (str): The name of the analysis.
+    description (str): A brief description of the analysis.
+    plot_filename (str): The filename for the output plot.
+    note (str): Additional notes for the analysis.
+    """
+
     name = "Peak Hours Analysis"
     description = "Identifies peak activity hours using a bar chart."
     plot_filename = "peak_hours.png"
     note = ""
 
     def transform_data(self, df: pd.DataFrame) -> pd.DataFrame:
-        """Transform data to add was_active column and extract peak hours"""
+        """
+        Transform data to add was_active column and extract peak hours. See data_utils.py.
+
+        Parameters:
+        df (pd.DataFrame): The input DataFrame containing user activity data.
+
+        Returns:
+        pd.DataFrame: The transformed DataFrame with additional columns for analysis.
+        """
         return df
 
     def plot_data(self, df: pd.DataFrame):
-        """Generate bar chart for peak hours"""
+        """
+        Generate bar chart for peak hours.
+
+        Parameters:
+        df (pd.DataFrame): The transformed DataFrame containing user activity data.
+        """
         peak_hours = df[df["was_active"]]["hour"].value_counts().sort_index()
 
         plt.figure(figsize=(12, 5))