excel - 从python中的一张excel文件中查找列的不同值

Question

How can I find the first column's distict values from sheet3 ?

import sys
import pandas as pd


excel_file = "dataset.xlsx"
datasets = pd.ExcelFile(excel_file)

sheet0 = pd.read_excel(datasets, 'Title Sheet')
sheet3 = pd.read_excel(excel_file, sheet_name=3, index_col=0)
sheet4 = pd.read_excel(excel_file, sheet_name=4, index_col=0)
sheet1 = pd.read_excel(excel_file, sheet_name=1, index_col=0)

customer_data = pd.concat([sheet3, sheet4, sheet1])

Answer 1

要获取特定工作表的唯一值，您可以执行以下操作:

unq = sheet3.iloc[:,0].unique()
print(unq)

要获取唯一值的计数，您可以执行以下操作:

unq = sheet3.iloc[:,0].nunique()
print(unq)