极客教程在Pandas Python中从数据框架中选择任何行
在这篇文章中，我们将学习如何在不使用ilic[]等函数的情况下，以列表的形式从一个数据框架中获取记录。有多种方法可以从给定的数据框架中以列表的形式获取行。让我们在例子的帮助下看看这些方法。
# importing pandas as pd
import pandas as pd
# Create the dataframe
df = pd.DataFrame({'Date':['10/2/2011', '11/2/2011', '12/2/2011', '13/2/11'],
'Event':['Music', 'Poetry', 'Theatre', 'Comedy'],
'Cost':[10000, 5000, 15000, 2000]})
# using interrors() method
# Create an empty list
Row_list =[]
# Iterate over each row
for index, rows in df.iterrows():
# Create list for the current row
my_list =[rows.Date, rows.Event, rows.Cost]
# append the list to the final list
Row_list.append(my_list)
# Print the list
print(Row_list) Python
输出:
[['10/2/2011', 'Music', 10000], ['11/2/2011', 'Poetry', 5000],
['12/2/2011', 'Theatre', 15000], ['13/2/11', 'Comedy', 2000]]
Python
# Print the first 2 elements
print(Row_list[:2]) Python
输出:
[['10/2/2011', 'Music', 10000], ['11/2/2011', 'Poetry', 5000]]
Python