Python 如何对所有唯一项目进行计数
我已附上 我想:项目的唯一名称列表及其频率计数(根据频率计数降序)。使用python 例子: 苹果:(23) 香蕉:(16) 奶酪:(9) 添加到furas评论中, 使用pandas和call value_count阅读电子表格Python 如何对所有唯一项目进行计数,python,Python,我已附上 我想:项目的唯一名称列表及其频率计数(根据频率计数降序)。使用python 例子: 苹果:(23) 香蕉:(16) 奶酪:(9) 添加到furas评论中, 使用pandas和call value_count阅读电子表格 import pandas as pd # Here you would read in your spreadsheet items = ['Apples','Bananas','Mushrooms','Tomatoes','Apples','Apples','T
import pandas as pd
# Here you would read in your spreadsheet
items = ['Apples','Bananas','Mushrooms','Tomatoes','Apples','Apples','Tomatoes']
ser = pd.Series(items)
# This gives you list output
ser.value_counts()
##Apples 3
##Tomatoes 2
##Mushrooms 1
##Bananas 1
pandas
具有值\u计数()
,可以读取excel或csv。
import pandas as pd
# Here you would read in your spreadsheet
items = ['Apples','Bananas','Mushrooms','Tomatoes','Apples','Apples','Tomatoes']
ser = pd.Series(items)
# This gives you list output
ser.value_counts()
##Apples 3
##Tomatoes 2
##Mushrooms 1
##Bananas 1