Python sparse.name方法代码示例

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_dense_to_sparse(self):
        series = self.bseries.to_dense()
        bseries = series.to_sparse(kind='block')
        iseries = series.to_sparse(kind='integer')
        tm.assert_sp_series_equal(bseries, self.bseries)
        tm.assert_sp_series_equal(iseries, self.iseries, check_names=False)
        assert iseries.name == self.bseries.name

        assert len(series) == len(bseries)
        assert len(series) == len(iseries)
        assert series.shape == bseries.shape
        assert series.shape == iseries.shape

        # non-NaN fill value
        series = self.zbseries.to_dense()
        zbseries = series.to_sparse(kind='block', fill_value=0)
        ziseries = series.to_sparse(kind='integer', fill_value=0)
        tm.assert_sp_series_equal(zbseries, self.zbseries)
        tm.assert_sp_series_equal(ziseries, self.ziseries, check_names=False)
        assert ziseries.name == self.zbseries.name

        assert len(series) == len(zbseries)
        assert len(series) == len(ziseries)
        assert series.shape == zbseries.shape
        assert series.shape == ziseries.shape 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_to_frame(self):
        # GH 9850
        s = pd.SparseSeries([1, 2, 0, nan, 4, nan, 0], name='x')
        exp = pd.SparseDataFrame({'x': [1, 2, 0, nan, 4, nan, 0]})
        tm.assert_sp_frame_equal(s.to_frame(), exp)

        exp = pd.SparseDataFrame({'y': [1, 2, 0, nan, 4, nan, 0]})
        tm.assert_sp_frame_equal(s.to_frame(name='y'), exp)

        s = pd.SparseSeries([1, 2, 0, nan, 4, nan, 0], name='x', fill_value=0)
        exp = pd.SparseDataFrame({'x': [1, 2, 0, nan, 4, nan, 0]},
                                 default_fill_value=0)

        tm.assert_sp_frame_equal(s.to_frame(), exp)
        exp = pd.DataFrame({'y': [1, 2, 0, nan, 4, nan, 0]})
        tm.assert_frame_equal(s.to_frame(name='y').to_dense(), exp) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_unary_operators(self, values, op, fill_value):
        # https://github.com/pandas-dev/pandas/issues/22835
        values = np.asarray(values)
        if op is operator.invert:
            new_fill_value = not fill_value
        else:
            new_fill_value = op(fill_value)
        s = SparseSeries(values,
                         fill_value=fill_value,
                         index=['a', 'b', 'c', 'd'],
                         name='name')
        result = op(s)
        expected = SparseSeries(op(values),
                                fill_value=new_fill_value,
                                index=['a', 'b', 'c', 'd'],
                                name='name')
        tm.assert_sp_series_equal(result, expected) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_concat(self):
        val1 = np.array([1, 2, np.nan, np.nan, 0, np.nan])
        val2 = np.array([3, np.nan, 4, 0, 0])

        for kind in ['integer', 'block']:
            sparse1 = pd.SparseSeries(val1, name='x', kind=kind)
            sparse2 = pd.SparseSeries(val2, name='y', kind=kind)

            res = pd.concat([sparse1, sparse2])
            exp = pd.concat([pd.Series(val1), pd.Series(val2)])
            exp = pd.SparseSeries(exp, kind=kind)
            tm.assert_sp_series_equal(res, exp)

            sparse1 = pd.SparseSeries(val1, fill_value=0, name='x', kind=kind)
            sparse2 = pd.SparseSeries(val2, fill_value=0, name='y', kind=kind)

            res = pd.concat([sparse1, sparse2])
            exp = pd.concat([pd.Series(val1), pd.Series(val2)])
            exp = pd.SparseSeries(exp, fill_value=0, kind=kind)
            tm.assert_sp_series_equal(res, exp,
                                      consolidate_block_indices=True) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_concat_different_fill(self):
        val1 = np.array([1, 2, np.nan, np.nan, 0, np.nan])
        val2 = np.array([3, np.nan, 4, 0, 0])

        for kind in ['integer', 'block']:
            sparse1 = pd.SparseSeries(val1, name='x', kind=kind)
            sparse2 = pd.SparseSeries(val2, name='y', kind=kind, fill_value=0)

            with tm.assert_produces_warning(PerformanceWarning):
                res = pd.concat([sparse1, sparse2])
            exp = pd.concat([pd.Series(val1), pd.Series(val2)])
            exp = pd.SparseSeries(exp, kind=kind)
            tm.assert_sp_series_equal(res, exp)

            with tm.assert_produces_warning(PerformanceWarning):
                res = pd.concat([sparse2, sparse1])
            exp = pd.concat([pd.Series(val2), pd.Series(val1)])
            exp = pd.SparseSeries(exp, kind=kind, fill_value=0)
            tm.assert_sp_series_equal(res, exp) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_concat_different_kind(self):
        val1 = np.array([1, 2, np.nan, np.nan, 0, np.nan])
        val2 = np.array([3, np.nan, 4, 0, 0])

        sparse1 = pd.SparseSeries(val1, name='x', kind='integer')
        sparse2 = pd.SparseSeries(val2, name='y', kind='block', fill_value=0)

        with tm.assert_produces_warning(PerformanceWarning):
            res = pd.concat([sparse1, sparse2])
        exp = pd.concat([pd.Series(val1), pd.Series(val2)])
        exp = pd.SparseSeries(exp, kind='integer')
        tm.assert_sp_series_equal(res, exp)

        with tm.assert_produces_warning(PerformanceWarning):
            res = pd.concat([sparse2, sparse1])
        exp = pd.concat([pd.Series(val2), pd.Series(val1)])
        exp = pd.SparseSeries(exp, kind='block', fill_value=0)
        tm.assert_sp_series_equal(res, exp) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_value_counts_int(self):
        vals = [1, 2, 0, 1, 2, 1, 2, 0, 1, 1]
        dense = pd.Series(vals, name='xx')

        # fill_value is np.nan, but should not be included in the result
        sparse = pd.SparseSeries(vals, name='xx')
        tm.assert_series_equal(sparse.value_counts(),
                               dense.value_counts())
        tm.assert_series_equal(sparse.value_counts(dropna=False),
                               dense.value_counts(dropna=False))

        sparse = pd.SparseSeries(vals, name='xx', fill_value=0)
        tm.assert_series_equal(sparse.value_counts(),
                               dense.value_counts())
        tm.assert_series_equal(sparse.value_counts(dropna=False),
                               dense.value_counts(dropna=False)) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_isna(self):
        # GH 8276
        s = pd.SparseSeries([np.nan, np.nan, 1, 2, np.nan], name='xxx')

        res = s.isna()
        exp = pd.SparseSeries([True, True, False, False, True], name='xxx',
                              fill_value=True)
        tm.assert_sp_series_equal(res, exp)

        # if fill_value is not nan, True can be included in sp_values
        s = pd.SparseSeries([np.nan, 0., 1., 2., 0.], name='xxx',
                            fill_value=0.)
        res = s.isna()
        assert isinstance(res, pd.SparseSeries)
        exp = pd.Series([True, False, False, False, False], name='xxx')
        tm.assert_series_equal(res.to_dense(), exp) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_notna(self):
        # GH 8276
        s = pd.SparseSeries([np.nan, np.nan, 1, 2, np.nan], name='xxx')

        res = s.notna()
        exp = pd.SparseSeries([False, False, True, True, False], name='xxx',
                              fill_value=False)
        tm.assert_sp_series_equal(res, exp)

        # if fill_value is not nan, True can be included in sp_values
        s = pd.SparseSeries([np.nan, 0., 1., 2., 0.], name='xxx',
                            fill_value=0.)
        res = s.notna()
        assert isinstance(res, pd.SparseSeries)
        exp = pd.Series([False, True, True, True, True], name='xxx')
        tm.assert_series_equal(res.to_dense(), exp) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_sparse_to_dense(self):
        arr, index = _test_data1()
        series = self.bseries.to_dense()
        tm.assert_series_equal(series, Series(arr, name='bseries'))

        # see gh-14647
        with tm.assert_produces_warning(FutureWarning,
                                        check_stacklevel=False):
            series = self.bseries.to_dense(sparse_only=True)

        indexer = np.isfinite(arr)
        exp = Series(arr[indexer], index=index[indexer], name='bseries')
        tm.assert_series_equal(series, exp)

        series = self.iseries.to_dense()
        tm.assert_series_equal(series, Series(arr, name='iseries'))

        arr, index = _test_data1_zero()
        series = self.zbseries.to_dense()
        tm.assert_series_equal(series, Series(arr, name='zbseries'))

        series = self.ziseries.to_dense()
        tm.assert_series_equal(series, Series(arr)) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_concat(self):
        val1 = np.array([1, 2, np.nan, np.nan, 0, np.nan])
        val2 = np.array([3, np.nan, 4, 0, 0])

        for kind in ['integer', 'block']:
            sparse1 = pd.SparseSeries(val1, name='x', kind=kind)
            sparse2 = pd.SparseSeries(val2, name='y', kind=kind)

            res = pd.concat([sparse1, sparse2])
            exp = pd.concat([pd.Series(val1), pd.Series(val2)])
            exp = pd.SparseSeries(exp, kind=kind)
            tm.assert_sp_series_equal(res, exp)

            sparse1 = pd.SparseSeries(val1, fill_value=0, name='x', kind=kind)
            sparse2 = pd.SparseSeries(val2, fill_value=0, name='y', kind=kind)

            res = pd.concat([sparse1, sparse2])
            exp = pd.concat([pd.Series(val1), pd.Series(val2)])
            exp = pd.SparseSeries(exp, fill_value=0, kind=kind)
            tm.assert_sp_series_equal(res, exp) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_concat_different_kind(self):
        val1 = np.array([1, 2, np.nan, np.nan, 0, np.nan])
        val2 = np.array([3, np.nan, 4, 0, 0])

        sparse1 = pd.SparseSeries(val1, name='x', kind='integer')
        sparse2 = pd.SparseSeries(val2, name='y', kind='block', fill_value=0)

        res = pd.concat([sparse1, sparse2])
        exp = pd.concat([pd.Series(val1), pd.Series(val2)])
        exp = pd.SparseSeries(exp, kind='integer')
        tm.assert_sp_series_equal(res, exp)

        res = pd.concat([sparse2, sparse1])
        exp = pd.concat([pd.Series(val2), pd.Series(val1)])
        exp = pd.SparseSeries(exp, kind='block', fill_value=0)
        tm.assert_sp_series_equal(res, exp) 

# 需要导入模块: from scipy import sparse [as 别名]
# 或者: from scipy.sparse import name [as 别名]
def test_value_counts_dup(self):
        vals = [1, 2, nan, 0, nan, 1, 2, nan, nan, 1, 2, 0, 1, 1]

        # numeric op may cause sp_values to include the same value as
        # fill_value
        dense = pd.Series(vals, name='xx') / 0.
        sparse = pd.SparseSeries(vals, name='xx') / 0.
        tm.assert_series_equal(sparse.value_counts(),
                               dense.value_counts())
        tm.assert_series_equal(sparse.value_counts(dropna=False),
                               dense.value_counts(dropna=False))

        vals = [1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 2, 0, 1, 1]

        dense = pd.Series(vals, name='xx') * 0.
        sparse = pd.SparseSeries(vals, name='xx') * 0.
        tm.assert_series_equal(sparse.value_counts(),
                               dense.value_counts())
        tm.assert_series_equal(sparse.value_counts(dropna=False),
                               dense.value_counts(dropna=False))