|
import numpy as np # 보통 numpy와 함께 import
import pandas as pd
data = {
'year':[2021, 2022, 2023],
'num': [5, 7, 10],
'sum': [36,57,89]
}
df = pd.DataFrame(data, index=data['year'])
print("row :", df.index)
print("column:", df.columns)
print("head :", df.head())
csv = pd.read_csv('test1.csv')
print(csv.head())
print(df['year'],df.year)
print(csv[['a','b']])
print(csv.loc[:3,['c','d']])
print(csv.iloc([:3,:3])
print(csv[csv['a'] == 'chjp'])
|
|
