Python – 仅显示 DataFrame 中不重复的值
pythonserver side programmingprogramming更新于 2025/11/5 6:04:17
我们将了解如何仅显示不重复的值。首先，我们将创建一个带有重复值的 DataFrame −
dataFrame = pd.DataFrame(
{
"Student": ['Jack', 'Robin', 'Ted', 'Robin', 'Scarlett', 'Kat', 'Ted'],"Result": ['Pass', 'Fail', 'Pass', 'Fail', 'Pass', 'Pass', 'Pass']
}
)
上面，我们创建了 2 列。要仅显示非重复值，请使用 duplicated() 方法和逻辑 NOT。通过此方法，将获取非重复值−
dataFrame[~dataFrame.duplicated('Student')]
示例
以下是完整代码 −
import pandas as pd
# 创建 DataFrame
dataFrame = pd.DataFrame(
{
"Student": ['Jack', 'Robin', 'Ted', 'Robin', 'Scarlett', 'Kat', 'Ted'],"Result": ['Pass', 'Fail', 'Pass', 'Fail', 'Pass', 'Pass', 'Pass']
}
)
print"DataFrame ...\n",dataFrame
# displaying non-duplicates
res = dataFrame[~dataFrame.duplicated('Student')]
print"\nDataFrame after removing duplicates ...\n",res
输出
这将产生以下输出 −
DataFrame ... Result Student 0 Pass Jack 1 Fail Robin 2 Pass Ted 3 Fail Robin 4 Pass Scarlett 5 Pass Kat 6 Pass Ted DataFrame after removing duplicates ... Result Student 0 Pass Jack 1 Fail Robin 2 Pass Ted 4 Pass Scarlett 5 Pass Kat
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有用资源
python 参考教程 - 该教程包含有关 python 的更多信息:https://www.cainiaomax.com/python/
