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개발자를 위한 필수 수학
book

개발자를 위한 필수 수학

by 토머스 닐드, 박해선
June 2024
Beginner to intermediate
352 pages
9h 29m
Korean
Hanbit Media, Inc.
Content preview from 개발자를 위한 필수 수학
25
5장 연습 문제
연습 문제
5
두 변수
x
y
에 대한 데이터는 여기 (
https
://
bit
.
ly
/
3C8JzrM
)에서 다운받을 수
있습니다.
0101
단순 선형 회귀를 수행해 손실(제곱 합 )을 최소화하는 기울기
m
과 절편
b
값을
찾으세요.
5
장에서 배운 대로 선형 회귀를 수행하는 데는 여러 가지 도구와 방법이 있습니다. 하지만
여기서는 사이킷런을 사용해 해를 구하겠습니다. 계산된 기울기는
1
.
75919315
이고 절편
4
.
69359655
입니다.
import pandas as pd
import matplotlib.pyplot as plt
from sklearn.linear_model import LinearRegression
# 데이터를 로드합니다.
df = pd.read_csv('https://bit.ly/3C8JzrM', delimiter=",")
# (마지막 열을 제외한 모든 열을) 입력 변수로 추출합니다.
X = df.values[:, :-1]
# 마지막 열을 출력으로 추출합니다.
Y = df.values[:, -1]
# 모델을 훈련합니다.
fit = LinearRegression().fit(X, Y)
# m = 1.75919315, b = 4.69359655
m = fit.coef_.flatten()
b = fit.intercept_.flatten()
print("m ...
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Publisher Resources

ISBN: 9791169212502