Binning

import numpy as np
import pandas as pd

df = pd.read_csv("../data/sample.csv")
df.head()

Binning data at each quantile

Binning based on how much of the data is X% of the total when sorted.

0.0        46.0
0.1     18002.9 <- 10%の値
0.2     20476.8
0.3     22755.0
0.4     26204.8
0.5     30824.0
0.6     45622.6
0.7     89873.9
0.8    245544.0
0.9    290714.1 <- 90%の値
1.0    765403.0

df["人口総数_ビン化"] = pd.qcut(df["人口総数"], q=11)
df[["人口総数", "人口総数_ビン化"]].head()