code: def __init__(self, dataset: pd.DataFrame):
      self._dataset = dataset
      with TimeInspector.logt("calc_stat_values"):
          self.calc_stat_values()
  
file_path: qlib/qlib/contrib/report/data/base.py
imports: import pandas
  from qlib.log import TimeInspector
  from qlib.contrib.report.utils import sub_fig_generator
label_desc: Use image node_id 1 to create a new FeaAnalyser object  with example: obj = FeaAnalyser(dataset)