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#概要
変数に対して、
.sort_values(by="カラムorカラムのリスト", ascending=True
とする列の値が小さい順にソートされる。

ascending=Falseと指定すると大きい順になる。

リストの場合、順番が早いカラムが優先的にソートされる。

import numpy as np
import pandas as pd
np.random.seed(0)
columns = ["apple", "orange", "banana", "strawberry", "kiwifruit"]

#DF作成
df = pd.DataFrame()
display(df)

#ランダムに要素の数を作成
for colum in colums:
    df[colum] = np.random.choice(range(1, 11), 10)

#インデックスを設定
df.index = range(1, 11)

#第2引数にascendingを指定しない場合はascending=Trueとして処理される。
df = df.sort_values(by = columns)

display(df)

#出力
image.png

columnsはリストなので順番が早いappleが優先されソートされる。

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