draft

读取csv文件

data_train = pd.read_csv(“E:\Kaggle\Titanic\train.csv”)

根据条件选择列

data_train.Age.value_counts()

Survived_m = data_train.Survived[data_train.Sex == ‘male’].value_counts()
df = pd.DataFrame({u”男性”:Survived_m})

DF画图

df.plot(kind=’bar’)

值转换

把property type里的F全换成’000’,s全换成’001’.
import pandas as pd
df = pd.read_csv(‘./data.csv’)
df.property_type = df.property_type.map({‘F’: ‘000’, ‘S’: ‘001’})