December 2024
Beginner to intermediate
336 pages
7h 41m
Korean
Content preview from 로우코드 AI
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52
로우코드 AI
그림
2-19
URL
을 판다스의 데이터프레임으로 읽어 들이기
데이터셋을 판다스 데이터프레임으로 가져오는 코드를 작성했습니다. 판다스 데이터프레임은
데이터를 테이블 형식으로 저장하는
2
차원 형식의 자료 구조입니다. 스프레드시트와 유사하죠.
이제 데이터프레임의 처음 다섯 행을 출력하는 코드를 작성합니다. 신규 코드 셀을 추가한 다
음
heart
_
df
.
head
()
를 입력하고 실행합니다. 그러면 [그림
2
-
20
]과 같은 결과가 출력됩니다.
그림
2-20
데이터프레임의 처음 다섯 행(가독성을 위해 일부 열만 캡처함)
53
2
장
데이터의 중요성
이번에도 신규 코드 셀을 추가하고,
heart
_
df
.
info
()
를 입력한 다음 실행하여 데이터프레임
의 정보를 확인해 봅니다.
.
info
()
는 데이터셋에 관한 정보를 제공하는 메서드입니다. 여기에
는 열의 개수, 이름, 데이터 유형과 더불어 메모리 사용량, 범위 인덱스와 열별로 몇 개의 기록
이 존재하는지(널이 아닌 값
non
-
null
value
)에 관한 정보가 포함됩니다(그림
2
-
21
).
7
그림
2-21
출력된 데이터프레임 정보
.
info
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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.