Pandas - Himeyama/himeyama GitHub Wiki
Pandas メモ
以下, Pandas のオブジェクトは df
読み込み
df = pd.read_csv('train.csv')
列の取り出し
df['date','num_sold'](/Himeyama/himeyama/wiki/'date','num_sold')
条件
条件
(df['country'] == 'Finland')
複数条件
(df['country'] == 'Finland') & (df['store'] == 'Mart')
CSV の書き込み
https://pandas.pydata.org/pandas-docs/stable/user_guide/10min.html#getting-data-in-out
df.to_csv("foo.csv")
pickle 書き込み
https://pandas.pydata.org/pandas-docs/stable/user_guide/io.html#pickling
df.to_pickle("foo.pkl")
pickle 読み込み
pd.read_pickle("foo.pkl")