class_docstr: Motivation:
  - display the values without further analysis
class_docstr_tok: ["Motivation",":","-","display","the","values","without","further","analysis"]
code: def calc_stat_values(self):
      ymin, ymax = self._dataset.min().min(), self._dataset.max().max()
      self.ylim = (
          ymin - 0.05 * (ymax - ymin),
          ymax + 0.05 * (ymax - ymin),
      )
  
imports: import pandas
  import numpy
  from qlib.contrib.report.data.base import FeaAnalyser
  from qlib.contrib.report.utils import sub_fig_generator
  from qlib.utils.paral import datetime_groupby_apply
  from qlib.contrib.eva.alpha import pred_autocorr_all
  from loguru import logger
  import seaborn
label_desc: Use image node_id 1 for calling the RawFeaAna obj's underlying member method code with example usage: obj.calc_stat_values() without return types