class_docstr: A wrapper around the statistics used to estimate deltas at a given scale.
class_docstr_tok: ["A","wrapper","around","the","statistics","used","to","estimate","deltas","at","a","given","scale","."]
code: def update_acceleration(self, accs: UnivariateTimeSeries):
      self.acceleration.add_batch(accs.values)
  
imports: import logging
  from math import floor
  from typing import Dict, List, Optional, Tuple, Union
  import numpy
  import pandas
  from merlion.utils.time_series import TimeSeries, UnivariateTimeSeries, assert_equal_timedeltas
  from merlion.utils.istat import ExponentialMovingAverage, RecencyWeightedVariance
  from merlion.utils.resample import to_pd_datetime, to_timestamp
  from merlion.transform.moving_average import LagTransform
  from merlion.transform.resample import TemporalResample
  from merlion.models.forecast.base import ForecasterBase, ForecasterConfig
label_desc: Use image node_id 4 for calling the DeltaStats obj's underlying member method code with example usage: obj.update_acceleration(accs) without return types