本文整理汇总了Python中pandas.util.testing.randn方法的典型用法代码示例。如果您正苦于以下问题：Python testing.randn方法的具体用法？Python testing.randn怎么用？Python testing.randn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.util.testing的用法示例。
在下文中一共展示了testing.randn方法的7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: test_append_concat
# 需要导入模块: from pandas.util import testing [as 别名]
# 或者: from pandas.util.testing import randn [as 别名]
def test_append_concat(self):
rng = date_range('5/8/2012 1:45', periods=10, freq='5T')
ts = Series(np.random.randn(len(rng)), rng)
df = DataFrame(np.random.randn(len(rng), 4), index=rng)
result = ts.append(ts)
result_df = df.append(df)
ex_index = DatetimeIndex(np.tile(rng.values, 2))
tm.assert_index_equal(result.index, ex_index)
tm.assert_index_equal(result_df.index, ex_index)
appended = rng.append(rng)
tm.assert_index_equal(appended, ex_index)
appended = rng.append([rng, rng])
ex_index = DatetimeIndex(np.tile(rng.values, 3))
tm.assert_index_equal(appended, ex_index)
# different index names
rng1 = rng.copy()
rng2 = rng.copy()
rng1.name = 'foo'
rng2.name = 'bar'
assert rng1.append(rng1).name == 'foo'
assert rng1.append(rng2).name is None 示例2: test_append_concat_tz_explicit_pytz
# 需要导入模块: from pandas.util import testing [as 别名]
# 或者: from pandas.util.testing import randn [as 别名]
def test_append_concat_tz_explicit_pytz(self):
# see gh-2938
from pytz import timezone as timezone
rng = date_range('5/8/2012 1:45', periods=10, freq='5T',
tz=timezone('US/Eastern'))
rng2 = date_range('5/8/2012 2:35', periods=10, freq='5T',
tz=timezone('US/Eastern'))
rng3 = date_range('5/8/2012 1:45', periods=20, freq='5T',
tz=timezone('US/Eastern'))
ts = Series(np.random.randn(len(rng)), rng)
df = DataFrame(np.random.randn(len(rng), 4), index=rng)
ts2 = Series(np.random.randn(len(rng2)), rng2)
df2 = DataFrame(np.random.randn(len(rng2), 4), index=rng2)
result = ts.append(ts2)
result_df = df.append(df2)
tm.assert_index_equal(result.index, rng3)
tm.assert_index_equal(result_df.index, rng3)
appended = rng.append(rng2)
tm.assert_index_equal(appended, rng3) 示例3: test_append_concat_tz_dateutil
# 需要导入模块: from pandas.util import testing [as 别名]
# 或者: from pandas.util.testing import randn [as 别名]
def test_append_concat_tz_dateutil(self):
# see gh-2938
rng = date_range('5/8/2012 1:45', periods=10, freq='5T',
tz='dateutil/US/Eastern')
rng2 = date_range('5/8/2012 2:35', periods=10, freq='5T',
tz='dateutil/US/Eastern')
rng3 = date_range('5/8/2012 1:45', periods=20, freq='5T',
tz='dateutil/US/Eastern')
ts = Series(np.random.randn(len(rng)), rng)
df = DataFrame(np.random.randn(len(rng), 4), index=rng)
ts2 = Series(np.random.randn(len(rng2)), rng2)
df2 = DataFrame(np.random.randn(len(rng2), 4), index=rng2)
result = ts.append(ts2)
result_df = df.append(df2)
tm.assert_index_equal(result.index, rng3)
tm.assert_index_equal(result_df.index, rng3)
appended = rng.append(rng2)
tm.assert_index_equal(appended, rng3) 示例4: test_repr_bool_fails
# 需要导入模块: from pandas.util import testing [as 别名]
# 或者: from pandas.util.testing import randn [as 别名]
def test_repr_bool_fails(self, capsys):
s = Series([DataFrame(np.random.randn(2, 2)) for i in range(5)])
# It works (with no Cython exception barf)!
repr(s)
captured = capsys.readouterr()
assert captured.err == '' 示例5: test_timeseries_repr_object_dtype
# 需要导入模块: from pandas.util import testing [as 别名]
# 或者: from pandas.util.testing import randn [as 别名]
def test_timeseries_repr_object_dtype(self):
index = Index([datetime(2000, 1, 1) + timedelta(i)
for i in range(1000)], dtype=object)
ts = Series(np.random.randn(len(index)), index)
repr(ts)
ts = tm.makeTimeSeries(1000)
assert repr(ts).splitlines()[-1].startswith('Freq:')
ts2 = ts.iloc[np.random.randint(0, len(ts) - 1, 400)]
repr(ts2).splitlines()[-1] 示例6: test_combine_first
# 需要导入模块: from pandas.util import testing [as 别名]
# 或者: from pandas.util.testing import randn [as 别名]
def test_combine_first(self):
values = tm.makeIntIndex(20).values.astype(float)
series = Series(values, index=tm.makeIntIndex(20))
series_copy = series * 2
series_copy[::2] = np.NaN
# nothing used from the input
combined = series.combine_first(series_copy)
tm.assert_series_equal(combined, series)
# Holes filled from input
combined = series_copy.combine_first(series)
assert np.isfinite(combined).all()
tm.assert_series_equal(combined[::2], series[::2])
tm.assert_series_equal(combined[1::2], series_copy[1::2])
# mixed types
index = tm.makeStringIndex(20)
floats = Series(tm.randn(20), index=index)
strings = Series(tm.makeStringIndex(10), index=index[::2])
combined = strings.combine_first(floats)
tm.assert_series_equal(strings, combined.loc[index[::2]])
tm.assert_series_equal(floats[1::2].astype(object),
combined.loc[index[1::2]])
# corner case
s = Series([1., 2, 3], index=[0, 1, 2])
result = s.combine_first(Series([], index=[]))
assert_series_equal(s, result) 示例7: test_repr_bool_fails
# 需要导入模块: from pandas.util import testing [as 别名]
# 或者: from pandas.util.testing import randn [as 别名]
def test_repr_bool_fails(self):
s = Series([DataFrame(np.random.randn(2, 2)) for i in range(5)])
# It works (with no Cython exception barf)!
repr(s)
output = sys.stderr.getvalue()
assert output == ''