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[금융공학 / 파이썬] day1Python 2024. 7. 12. 15:17
- numpy
import numpy as np arr1 = np.array([4,3,2,1]) arr1 * 3
array([12, 9, 6, 3])
from numpy import array array([4,3,2,1])
array([4, 3, 2, 1])
list4 = [7,5,4] list5 = [9,6,1] list6 = [list4, list5] list6[0][1] arr2 = np.array(list6) arr2.shape #행, 열 개수 알려줌
(2, 3)
- pandas
import pandas as pd #arr2를 pandas의 DataFram함수에 넣어보세요 df1 = pd.DataFrame(arr2) df1.values
array([[7, 5, 4], [9, 6, 1]])
df1.columns = ["a", "b", "c"] df1.index = ["2024-07-12", "2024-07-13"] df1.info()
df1.describe()
df1.plot()
df1.shape
(2, 3)