class_docstr: Data storage for spectrum measurements
docstr: Apply smoothing function to data
code: def smooth_data(self, y):
      """Apply smoothing function to data"""
      return smooth(
          y, window_len=self.smooth_length, window=self.smooth_window
      )
  
imports: import time, sys, os
  from Qt import QtCore
  import numpy
  from qspectrumanalyzer.utils import smooth
  from qspectrumanalyzer.backends import soapy_power
label_desc: Use image node_id 12 for calling the DataStorage obj's underlying member method code with example usage: obj.smooth_data(y) and returns: smooth