本文整理汇总了Python中pandas.core.common.SettingWithCopyWarning方法的典型用法代码示例。如果您正苦于以下问题：Python common.SettingWithCopyWarning方法的具体用法？Python common.SettingWithCopyWarning怎么用？Python common.SettingWithCopyWarning使用的例子？那么, 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.core.common的用法示例。
在下文中一共展示了common.SettingWithCopyWarning方法的3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_detect_chained_assignment_warnings
# 需要导入模块: from pandas.core import common [as 别名]
# 或者: from pandas.core.common import SettingWithCopyWarning [as 别名]
def test_detect_chained_assignment_warnings(self):
with option_context("chained_assignment", "warn"):
df = DataFrame({"A": ["aaa", "bbb", "ccc"], "B": [1, 2, 3]})
with tm.assert_produces_warning(com.SettingWithCopyWarning):
df.loc[0]["A"] = 111 示例2: test_detect_chained_assignment_warnings_filter_and_dupe_cols
# 需要导入模块: from pandas.core import common [as 别名]
# 或者: from pandas.core.common import SettingWithCopyWarning [as 别名]
def test_detect_chained_assignment_warnings_filter_and_dupe_cols(self):
# xref gh-13017.
with option_context("chained_assignment", "warn"):
df = pd.DataFrame([[1, 2, 3], [4, 5, 6], [7, 8, -9]],
columns=["a", "a", "c"])
with tm.assert_produces_warning(com.SettingWithCopyWarning):
df.c.loc[df.c > 0] = None
expected = pd.DataFrame([[1, 2, 3], [4, 5, 6], [7, 8, -9]],
columns=["a", "a", "c"])
tm.assert_frame_equal(df, expected) 示例3: test_detect_chained_assignment_warnings
# 需要导入模块: from pandas.core import common [as 别名]
# 或者: from pandas.core.common import SettingWithCopyWarning [as 别名]
def test_detect_chained_assignment_warnings(self):
# warnings
with option_context('chained_assignment', 'warn'):
df = DataFrame({'A': ['aaa', 'bbb', 'ccc'], 'B': [1, 2, 3]})
with tm.assert_produces_warning(
expected_warning=com.SettingWithCopyWarning):
df.loc[0]['A'] = 111