June 2025
Beginner to intermediate
484 pages
10h 52m
Korean
Content preview from 잘되는 머신러닝 팀엔 이유가 있다
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319
Chapter 8
리팩터링과 기술 부채 관리
코드 스멜
다음은
ML
코드베이스에서 자주 보게 되는 일반적인 코드 스멜 종류입니다.
1. 의도를 드러내지 않는 변수 이름
변수 이름이 불명확하면 퍼즐을 풀기 위해 정신적 노력을 낭비하게 됩니다.
ML
코드에서 흔히 문제를 일으키
는 것 중 하나는 데이터프레임입니다. 모든 데이터프레임의 이름이
df
로 지정됩니다. 데이터프레임에 더 좋은
이름을 찾기 위해서는 각 행에 무엇이 들어 있는지 생각해야 합니다. 예를 들어, 데이터프레임의 각 행이 ‘대
출’이라면, 데이터프레임은 ‘대출의 모음’입니다. 따라서 데이터프레임을 ‘대출들
loans
’이라고 부를 수 있습니다.
다음 두 가지 대조적인 예시를 통해 이름을 잘 지은 변수의 가치를 설명하겠습니다.
[나쁜 예시]
df
=
pd
.
read
_
csv
('
loans
.
csv
')
_
df
=
df
.
groupby
(['
month
']).
sum
()
__
df
=
filter
_
loans
(_
df
,
month
=
12
)
#
12
월의총대출금액을계산해봅시다.
total
_
loan
_
amount
=__
df
...#잠깐,
df
,_
df
,__
df
중어떤것을사용해야할까요?
[좋은 예시]
loans
=
pd
.
read
_
csv
('
loans
.
csv
')
monthly
_
loans
=
loans ...
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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.