本文整理汇总了Python中pandas.sparse.api.SparseSeries.astype方法的典型用法代码示例。如果您正苦于以下问题：Python SparseSeries.astype方法的具体用法？Python SparseSeries.astype怎么用？Python SparseSeries.astype使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pandas.sparse.api.SparseSeries的用法示例。
在下文中一共展示了SparseSeries.astype方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: TestSparseSeries
# 需要导入模块: from pandas.sparse.api import SparseSeries [as 别名]
# 或者: from pandas.sparse.api.SparseSeries import astype [as 别名]
#.........这里部分代码省略.........
self.assertEqual(values[0], 97)
self.assertEqual(len(sp), 20)
self.assertEqual(sp.shape, (20, ))
def test_constructor_scalar(self):
data = 5
sp = SparseSeries(data, np.arange(100))
sp = sp.reindex(np.arange(200))
self.assertTrue((sp.ix[:99] == data).all())
self.assertTrue(isnull(sp.ix[100:]).all())
data = np.nan
sp = SparseSeries(data, np.arange(100))
self.assertEqual(len(sp), 100)
self.assertEqual(sp.shape, (100, ))
def test_constructor_ndarray(self):
pass
def test_constructor_nonnan(self):
arr = [0, 0, 0, nan, nan]
sp_series = SparseSeries(arr, fill_value=0)
assert_equal(sp_series.values.values, arr)
self.assertEqual(len(sp_series), 5)
self.assertEqual(sp_series.shape, (5, ))
# GH 9272
def test_constructor_empty(self):
sp = SparseSeries()
self.assertEqual(len(sp.index), 0)
self.assertEqual(sp.shape, (0, ))
def test_copy_astype(self):
cop = self.bseries.astype(np.float64)
self.assertIsNot(cop, self.bseries)
self.assertIs(cop.sp_index, self.bseries.sp_index)
self.assertEqual(cop.dtype, np.float64)
cop2 = self.iseries.copy()
tm.assert_sp_series_equal(cop, self.bseries)
tm.assert_sp_series_equal(cop2, self.iseries)
# test that data is copied
cop[:5] = 97
self.assertEqual(cop.sp_values[0], 97)
self.assertNotEqual(self.bseries.sp_values[0], 97)
# correct fill value
zbcop = self.zbseries.copy()
zicop = self.ziseries.copy()
tm.assert_sp_series_equal(zbcop, self.zbseries)
tm.assert_sp_series_equal(zicop, self.ziseries)
# no deep copy
view = self.bseries.copy(deep=False)
view.sp_values[:5] = 5
self.assertTrue((self.bseries.sp_values[:5] == 5).all())
def test_shape(self):
# GH 10452
self.assertEqual(self.bseries.shape, (20, ))
self.assertEqual(self.btseries.shape, (20, ))
self.assertEqual(self.iseries.shape, (20, ))示例2: TestSparseSeries
# 需要导入模块: from pandas.sparse.api import SparseSeries [as 别名]
# 或者: from pandas.sparse.api.SparseSeries import astype [as 别名]
#.........这里部分代码省略.........
assert_sp_series_equal(s3, self.iseries)
assert_sp_series_equal(s4, self.zbseries)
# Sparse time series works
date_index = DateRange("1/1/2000", periods=len(self.bseries))
s5 = SparseSeries(self.bseries, index=date_index)
self.assert_(isinstance(s5, SparseTimeSeries))
# pass Series
bseries2 = SparseSeries(self.bseries.to_dense())
assert_equal(self.bseries.sp_values, bseries2.sp_values)
# pass dict?
# don't copy the data by default
values = np.ones(len(self.bseries.sp_values))
sp = SparseSeries(values, sparse_index=self.bseries.sp_index)
sp.sp_values[:5] = 97
self.assert_(values[0] == 97)
# but can make it copy!
sp = SparseSeries(values, sparse_index=self.bseries.sp_index, copy=True)
sp.sp_values[:5] = 100
self.assert_(values[0] == 97)
def test_constructor_ndarray(self):
pass
def test_constructor_nonnan(self):
arr = [0, 0, 0, nan, nan]
sp_series = SparseSeries(arr, fill_value=0)
assert_equal(sp_series.values, arr)
def test_copy_astype(self):
cop = self.bseries.astype(np.float_)
self.assert_(cop is not self.bseries)
self.assert_(cop.sp_index is self.bseries.sp_index)
self.assert_(cop.dtype == np.float64)
cop2 = self.iseries.copy()
assert_sp_series_equal(cop, self.bseries)
assert_sp_series_equal(cop2, self.iseries)
# test that data is copied
cop.sp_values[:5] = 97
self.assert_(cop.sp_values[0] == 97)
self.assert_(self.bseries.sp_values[0] != 97)
# correct fill value
zbcop = self.zbseries.copy()
zicop = self.ziseries.copy()
assert_sp_series_equal(zbcop, self.zbseries)
assert_sp_series_equal(zicop, self.ziseries)
# no deep copy
view = self.bseries.copy(deep=False)
view.sp_values[:5] = 5
self.assert_((self.bseries.sp_values[:5] == 5).all())
def test_astype(self):
self.assertRaises(Exception, self.bseries.astype, np.int64)
def test_kind(self):
self.assertEquals(self.bseries.kind, "block")