Python duplicated示例

示例#1

def test_duplicated_with_nas():
    keys = np.array([0, 1, nan, 0, 2, nan], dtype=object)

    result = lib.duplicated(keys)
    expected = [False, False, False, True, False, True]
    assert (np.array_equal(result, expected))

    result = lib.duplicated(keys, take_last=True)
    expected = [True, False, True, False, False, False]
    assert (np.array_equal(result, expected))

    keys = np.empty(8, dtype=object)
    for i, t in enumerate(list(zip([0, 0, nan, nan] * 2,
                                   [0, nan, 0, nan] * 2))):
        keys[i] = t

    result = lib.duplicated(keys)
    falses = [False] * 4
    trues = [True] * 4
    expected = falses + trues
    assert (np.array_equal(result, expected))

    result = lib.duplicated(keys, take_last=True)
    expected = trues + falses
    assert (np.array_equal(result, expected))

示例#2

文件： base.py 项目： cldy/pandas

 def duplicated(self, keep="first"):
     keys = com._values_from_object(com._ensure_object(self.values))
     duplicated = lib.duplicated(keys, keep=keep)
     try:
         return self._constructor(duplicated, index=self.index).__finalize__(self)
     except AttributeError:
         return np.array(duplicated, dtype=bool)

示例#3

文件： base.py 项目： kelvin22/pandas

 def duplicated(self, take_last=False):
     keys = com._ensure_object(self.values)
     duplicated = lib.duplicated(keys, take_last=take_last)
     try:
         return self._constructor(duplicated, index=self.index).__finalize__(self)
     except AttributeError:
         return np.array(duplicated, dtype=bool)

示例#4

 def duplicated(self, keep='first'):
     keys = com._values_from_object(com._ensure_object(self.values))
     duplicated = lib.duplicated(keys, keep=keep)
     try:
         return self._constructor(duplicated,
                                  index=self.index).__finalize__(self)
     except AttributeError:
         return np.array(duplicated, dtype=bool)

示例#5

文件： base.py 项目： sdegryze/pandas

 def duplicated(self, take_last=False):
     keys = com._ensure_object(self.values)
     duplicated = lib.duplicated(keys, take_last=take_last)
     try:
         return self._constructor(duplicated,
                                  index=self.index).__finalize__(self)
     except AttributeError:
         return np.array(duplicated, dtype=bool)

示例#6

 def duplicated(self, take_last=False):
     keys = com._ensure_object(self.values)
     duplicated = lib.duplicated(keys, take_last=take_last)
     try:
         return self._constructor(duplicated,
                                  index=self.index).__finalize__(self)
     except AttributeError:
         from pandas.core.index import Index
         return Index(duplicated)

示例#7

文件： test_tseries.py 项目： Acanthostega/pandas

def test_duplicated_with_nas():
    keys = np.array([0, 1, nan, 0, 2, nan], dtype=object)

    result = lib.duplicated(keys)
    expected = [False, False, False, True, False, True]
    assert(np.array_equal(result, expected))

    result = lib.duplicated(keys, take_last=True)
    expected = [True, False, True, False, False, False]
    assert(np.array_equal(result, expected))

    keys = np.empty(8, dtype=object)
    for i, t in enumerate(zip([0, 0, nan, nan] * 2, [0, nan, 0, nan] * 2)):
        keys[i] = t

    result = lib.duplicated(keys)
    falses = [False] * 4
    trues = [True] * 4
    expected = falses + trues
    assert(np.array_equal(result, expected))

    result = lib.duplicated(keys, take_last=True)
    expected = trues + falses
    assert(np.array_equal(result, expected))