March 2022
Beginner to intermediate
796 pages
18h 14m
Korean
Content preview from 파이썬을 활용한 금융 분석(2판) : 파이썬의 기초부터 금융공학, 머신러닝, 퀀트 분석, 매매 시스템 구현까지
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551
13
장
통계 분석
True, True, True, True, False, True])
In [87]: accuracy_score(test_y, pred_test)
➋
Out[87]: 0.7878787878787878
In [88]: test_c = test_x[test_y == pred_test]
test_f = test_x[test_y != pred_test]
In [89]: plt.figure(figsize=(10, 6))
plt.scatter(x=test_c[:, 0], y=test_c[:, 1],
c=test_y[test_y == pred_test],
marker='o', cmap='coolwarm')
plt.scatter(x=test_f[:, 0], y=test_f[:, 1],
c=test_y[test_y != pred_test],
marker='x', cmap='coolwarm');
➊
검증용 데이터에 기반하여 레이블값 예측
➋
검증용 데이터에 대한 표본 외
out
-
of
-
sample
정확도 계산
그림
13-30
검증용 데이터에 대한 서포트 벡터 머신 모형의 정답(점)과 오답(십자)
서포트 벡터 머신 분류 알고리즘은 사용하는 커널
kernel
을 선택할 수 있다. 다음 분석 결과에서
보이듯이 문제에 따라서는 커널이 다르면 성능이 달라진다. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.