def analyze(self):
"""
not unit-dependant
bit congruence directly between ngrams
"""
if not self._n:
raise ParametersNotSet(
'Analysis parameter missing: N-gram size ("n").')
tokenlist = list(self.ngrams(self._n))
self._values = BitCongruence.bitCongruenceBetweenTokens(tokenlist)
MessageAnalyzer.analyze(self)
def analyze(self):
"""
bit congruence compared to number of bytes of horizon backwards.
:return:
"""
if not self._analysisArgs:
raise ParametersNotSet('Analysis parameter missing: horizon.')
horizon = self._analysisArgs[0]
self._startskip += horizon
tokenlist = self._message.data # tokenlist could also be list of ngrams.
bitcongruences = BitCongruence.bitCongruenceBetweenTokens(tokenlist)
mbhBitVar = list()
for idx, token in enumerate(bitcongruences[horizon:], horizon):
congruenceUptoHorizon = numpy.mean(bitcongruences[idx - 2:idx])
mbVar = token - congruenceUptoHorizon
mbhBitVar.append(mbVar)
self._values = mbhBitVar
# add this object to the cache
MessageAnalyzer.analyze(self)