参考链接: Python | Pandas 数据 DataFrame
初始化
1由字典初始化
(1)字典是{key:list} 格式
data = {'name':['li', 'liu', 'chen...'],
'score':[90, 80, 85]}
df = pd.DataFrame(data, index=['one', 'two','three'])
print(df) ...one':'li','two':'liu','three':'chen'},
'score':{'one':'90','two':'80','three':'85'}}
df = pd.DataFrame...data = {'name':['li', 'liu', 'chen'],
'score':[90, 80, 85],
'sex':[0, 1, 0]}
df = pd.DataFrame...还提供了loc(根据行标签)和iloc(根据位置),跟ix在功能上有重叠
先看loc
print(df.loc['one']) #选取索引为'one'的行
print(df.loc[:,['name'