May 2022
Beginner to intermediate
667 pages
16h 17m
Korean
Content preview from R Cookbook
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R
320
10장 그래픽스
10.7
데이터 쌍들을 그래프에 찍고 있는데, 그들의 선형회귀(
linear
regression
)를 보여 주
는 선을 그려 넣고 싶다.
ggplot
에서는
R
의
lm
함수로 먼저 선형 모형을 계산할 필요가 없다. 그 대신,
geom_
smooth
함수를 써서
ggplot
호출 내에서 선형회귀를 계산하면 된다.
데이터가
df
라는 데이터 프레임에 담겨 있고,
x
와
y
데이터는 각각
x
와
y
라는 이름
의 열에 들어 있다면 다음과 같이 회귀선을 그릴 수 있다.
ggplot(df, aes(x, y)) +
geom
_
point() +
geom
_
smooth(method = "lm",
formula = y ~ x,
se = FALSE)
se = FALSE
인자는
ggplot
이 회귀선 주위에 표준오차 밴드(
error
band
)를 넣지 않도
록 해 주는 역할이다.
R Cookbook 2판_최종.indd 320 21. 4. 27. 오전 11:07
Cookbook
321
10.7 산점도의 회귀선 그리기
faraw
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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.