May 2022
Beginner to intermediate
667 pages
16h 17m
Korean
Content preview from R Cookbook
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R
464
12장 쓸만한 요령들
con <- DBI::dbConnect(
RPostgreSQL::PostgreSQL(),
dbname = "my
_
database",
port = 5439,
host = "my
_
database.amazonaws.com",
user = Sys.getenv("DB
_
USERID"),
password = Sys.getenv("DB
_
PASSWORD")
)
레시피 시작 설정을 변경하는 방법은 레시피
3
.
16
을 참고하라.
12.20
스크립트가 길어서 하나의 코드 섹션에서 다음 섹션으로 넘어가기 어렵다.
코드 섹션을 사용하면 에디터의 옆쪽에 있는 개요 창에 섹션 디바이더가 생긴다. 코
드 섹션을 사용하려면, 주석을
#
으로 시작하고
----
또는
####
또는
====
로 끝내면
된다.
# My First Section
-----
x <- 1
# My Second Section
####
y <- 2
# My Third Section
====
z <- 3
RStudio
에디터 창에서는 우측에서 개요를 볼 수 있다(그림
12
-
2
참고).
R Cookbook 2판_최종.indd 464 21. 4. 27. 오전 11:07
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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.