code: def testROCR100(self):
      barDs = self.__loadBarDS()
      self.assertAmountsAreEqual(
          indicator.ROCR100(barDs.getCloseDataSeries(), 252, 14)[14],
          99.4536,
          4,
      )
      self.assertAmountsAreEqual(
          indicator.ROCR100(barDs.getCloseDataSeries(), 252, 14)[15],
          97.8906,
          4,
      )
      self.assertAmountsAreEqual(
          indicator.ROCR100(barDs.getCloseDataSeries(), 252, 14)[16],
          94.4689,
          4,
      )
      self.assertAmountsAreEqual(
          indicator.ROCR100(barDs.getCloseDataSeries(), 252, 14)[-1],
          98.9633,
          4,
      )
  
imports: import datetime
  import talib
  from six.moves import xrange
  from .None import common
  from pyalgotrade.talibext import indicator
  from pyalgotrade import bar
  from pyalgotrade import dataseries
  from pyalgotrade.dataseries import bards
label_desc: Use image node_id 43 for calling the TestCase obj's underlying member method code with example usage: obj.testROCR100() without return types