May 2021
Beginner to intermediate
380 pages
9h 22m
Korean
Content preview from 데이터 과학을 위한 통계(2판)
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
242
데이터 과학을 위한 통계
drop_first=True)
y = loan_data[outcome]
logit_reg = LogisticRegression(penalty=’l2’, C=1e42, solver=’liblinear’)
logit_reg.fit(X, y)
R
과 달리 사이킷런은
y
에서 하나의 값(상환 혹은 연체 )으로 클래스를 결정한다. 내부적으로
클래스를 알파벳순으로 정렬 (
default
가
0
paid
off
가
1
)한다. 이것은
R
에 사용된 요인 (
paid
off
가
0
default
가
1
)과는 반대 방향이므로 계수 부호가 반대로 나오는 것을 볼 수 있다.
predict
메서드는 클래스 라벨을 반환하고
predict
_
proba
는
logit
_
reg
.
classes
_
속성에
서 사용 가능한 순서로 확률을 반환한다.
5.3.3
일반화선형모형
일반화선형모형
generalized
linear
model
(
GLM
)은 다음 두 가지 주요 구성 요소로 특징지어진다.
•
확률분포 또는 분포군 (로지스틱 회귀의 경우 이항분포 )
•
응답을 예측변수에 매핑하는 연결 (혹은 변형 ) 함수 (로지스틱 회귀의 경우 로짓 )
분명히, 로지스틱 회귀는
GLM
의 가장 널리 알려진 일반적인 형태이다. 데이터 과학자는 다른
유형의
GLM
을 접할 것이다. 때로는 로짓 대신에 로그 연결 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.