code: def _getScaledValue(self, inpt):
      
      if inpt == SENTINEL_VALUE_FOR_MISSING_DATA:
        return None
      else:
        val = inpt
        if val < self.minval:
          val = self.minval
        elif val > self.maxval:
          val = self.maxval
  
        scaledVal = math.log10(val)
        return scaledVal
docs: Convert the input, which is in normal space, into log space