Python - 仅显示来自 DataFrame 的非重复值
我们将看到如何仅显示非重复值。首先，我们将创建一个具有重复值的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。通过这种方式，将获取非重复值-
dataFrame[~dataFrame.duplicated('Student')]示例
以下是完整的代码-
import pandas as pd
#创建数据帧
dataFrame = pd.DataFrame(
{
"Student": ['Jack', 'Robin', 'Ted', 'Robin', 'Scarlett', 'Kat', 'Ted'],"Result": ['Pass', 'Fail', 'Pass', 'Fail', 'Pass', 'Pass', 'Pass']
}
)
print"DataFrame ...\n",dataFrame
#显示非重复
res = dataFrame[~dataFrame.duplicated('Student')]
print"\nDataFrame after removing duplicates ...\n",res输出结果这将产生以下输出-
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