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밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초
book

밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초

by Joel Grus, Hangyeol Kim, Seongju Ha, Eunjung Park
May 2022
Beginner to intermediate
448 pages
13h 7m
Korean
Insight
Content preview from 밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초
from Scratch
47
󽴜󽴔󺠿󻱃󼘏󻪟󽴔󻫳󻞯󽴔󺅒󻰓󽴔󼬧󻫐󼨸󺞗󺞳󽴕
from typing import Callable
# repeater
함수가
문자열과
int
인자로
받고
#
문자열을
반환해
준다는
것을
명시
def twice(repeater: Callable[[str, int], str], s: str) -> str:
return repeater(s, 2)
def comma
_
repeater(s: str, n: int) -> str:
n
_
copies = [s for
_
in range(n)]
return ', '.join(n
_
copies)
assert twice(comma
_
repeater, "type hints") == "type hints, type hints"
명시된 타입 자체도 파이썬 객체이기 때문에 변수로 선언할 수 있다.
Number = int
Numbers = List[Number]
def total(xs: Numbers) -> Number:
return sum(xs)
이 책을 통해서 명시된 타입을 이해하고 직접 작성하는 데 익숙해질 것이다. 앞
으로 코드를 작성할 때는 항상 타입을 명시해 주자.
2.27
데이텀에 오신 것을 환영합니다!
이제 신입사원 오리엔테이션이 끝났다. 아, 무엇보다 재직 중에 횡령하지 않도
록 조심하자.
2.28
더 공부해 보고 싶다면 ...
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Publisher Resources

ISBN: 9788966262571