May 2022
Beginner to intermediate
448 pages
13h 7m
Korean
book
밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초
by Joel Grus, Hangyeol Kim, Seongju Ha, Eunjung Park
Content preview from 밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초
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from Scratch
243
senior
_
inputs = [input for input in inputs if input.level == 'Senior']
assert 0.4 == partition
_
entropy
_
by(senior
_
inputs, 'lang', 'did
_
well')
assert 0.0 == partition
_
entropy
_
by(senior
_
inputs, 'tweets', 'did
_
well')
assert 0.95 < partition
_
entropy
_
by(senior
_
inputs, 'phd', 'did
_
well') < 0.96
앞의 결과에 따르면
tweets
의 엔트로피 값은
0
이므로 이에 따라 파티션을 나누
자. 이 경우에는
Senior
직급인 후보들이 트위터를 하면 항상
True
이고, 트위터
를 하지 않으면 항상
False
가 된다.
마지막으로
Junior
직급 후보자들에 대해서도 같은 작업을 반복해 보면
phd
를
기준으로 파티션을 나누게 되는데,
phd
의 경우 항상
False
를 반환한다는 사실을
발견할 수 있다.
그림
17
-
3
에서 최종 의사결정나무를 확인할 수 있다.
그림 17-3
17.5 ...
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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.