目录
一、实战场景
实战场景:Pandas如何统计字段缺失值
二、主要知识点
三、菜鸟实战
马上安排!
1、创建 python 文件
import pandas as pd
df = pd.read_csv("used_cars.csv", index_col=0)
print(df.head(5))
# 统计每一列多少个空值
print(df.isnull().sum())
2、运行结果
Name Location Year ... Seats New_Price Price
0 Maruti Wagon R LXI CNG Mumbai 2010 ... 5.0 NaN 1.75
1 Hyundai Creta 1.6 CRDi SX Option Pune 2015 ... 5.0 NaN 12.50
2 Honda Jazz V Chennai 2011 ... 5.0 8.61 Lakh 4.50
3 Maruti Ertiga VDI Chennai 2012 ... 7.0 NaN 6.00
4 Audi A4 New 2.0 TDI Multitronic Coimbatore 2013 ... 5.0 NaN 17.74
[5 rows x 13 columns]
Name 0
Location 0
Year 0
Kilometers_Driven 0
Fuel_Type 0
Transmission 0
Owner_Type 0
Mileage 2
Engine 36
Power 36
Seats 42
New_Price 5195
Price 0
dtype: int64
菜鸟实战,持续学习!