def getDatasetFieldMetaData(self):
""" [virtual method override]
Returns: a tuple of dataset field metadata descriptors that are
arranged in the same order as the columns in the dataset.
Each field metadata descriptor is of type
nupic.data.fieldmeta.FieldMetaInfo
"""
return FieldMetaInfo.createListFromFileFieldList(self._reader.getFields())
def getDatasetFieldMetaData(self):
""" [virtual method override]
Returns: a tuple of dataset field metadata descriptors that are
arranged in the same order as the columns in the dataset.
Each field metadata descriptor is of type
nupic.data.fieldmeta.FieldMetaInfo
"""
return FieldMetaInfo.createListFromFileFieldList(self._reader.getFields())
def __init__(self, fn, iterations, historyBuffer = None):
random.seed(42)
self.nIterations = iterations
self.fn = fn
self.iterations = iter(xrange(iterations))
self.history = historyBuffer
firstRecord = fn(0)
fieldList = [(name, self.__getType(val), '')
for name, val in firstRecord.iteritems()]
self.__metaData = FieldMetaInfo.createListFromFileFieldList(fieldList)
def __init__(self, fn, iterations, historyBuffer=None):
random.seed(42)
self.nIterations = iterations
self.fn = fn
self.iterations = iter(xrange(iterations))
self.history = historyBuffer
firstRecord = fn(0)
fieldList = [(name, self.__getType(val), '')
for name, val in firstRecord.iteritems()]
self.__metaData = FieldMetaInfo.createListFromFileFieldList(fieldList)
def testFieldMetaInfo(self):
# Create a single FieldMetaInfo instance from a File field"s meta-data tuple
e = ("pounds", FieldMetaType.float, FieldMetaSpecial.none)
m = FieldMetaInfo.createFromFileFieldElement(e)
self.assertEqual(e, m)
# Create a list of FieldMetaInfo instances from a list of File meta-data
# tuples
el = [("pounds", FieldMetaType.float, FieldMetaSpecial.none),
("price", FieldMetaType.float, FieldMetaSpecial.none),
("id", FieldMetaType.string, FieldMetaSpecial.sequence),
("date", FieldMetaType.datetime, FieldMetaSpecial.timestamp),
]
ml = FieldMetaInfo.createListFromFileFieldList(el)
self.assertEqual(el, ml)
def testFieldMetaInfo(self):
# Create a single FieldMetaInfo instance from a File field"s meta-data tuple
e = ("pounds", FieldMetaType.float, FieldMetaSpecial.none)
m = FieldMetaInfo.createFromFileFieldElement(e)
self.assertEqual(e, m)
# Create a list of FieldMetaInfo instances from a list of File meta-data
# tuples
el = [("pounds", FieldMetaType.float, FieldMetaSpecial.none),
("price", FieldMetaType.float, FieldMetaSpecial.none),
("id", FieldMetaType.string, FieldMetaSpecial.sequence),
("date", FieldMetaType.datetime, FieldMetaSpecial.timestamp),
]
ml = FieldMetaInfo.createListFromFileFieldList(el)
self.assertEqual(el, ml)
