Python 튜토리얼

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Lv1 전처리 2/2 python 파이썬 결측치삭제,대체(dropna, fillna)

2021.06.14 16:49 8,281 Views

dropna() 를 사용하면, 결측치를 갖는 행을 DataFrame 객체에서 삭제합니다. 결측치를 처리하는 방법은 여러가지가 있지만, Lv1에서는 가장 쉽고 간단한 방법인 결측치를 가진 행을 제거 하는 방법에 실습해 보겠습니다.


또한 fillna() 를 사용해 모든 결측치를 인자값으로 대체할 수도 있습니다.

DataFrame.dropna()
DataFrame.fillna()



[Colab 실습 링크]


Colaboratory 를 처음 접한 분은 👉 Colab 이란?


⬅️ Lv1 | 전처리 | 1/2 | 데이터결측치확인하기(info())

Lv1 | 모델링 | 1/8 | Sklearn 패키지➡️

↩️ 오늘의 파이썬 리스트


👨‍💻데이스쿨 AI프로젝트👩🏻‍💻


#데이콘 #데이콘_101 #파이썬 #머신러닝 #딥러닝 #인공지능 #앙상블 #의사결정나무 #코랩 #데이터 #데이터분석 #판다스 #넘파이 #데이터사이언티스트 #AI #Python # Pandas #Numpy #lightgbm #read_csv #DACON #kaggle #sckit-learn

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2021.06.26 11:16

kyeongsoo
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ocial
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done

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vv00
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done

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옐레나
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징징E
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놀란햄스터
2021.07.31 22:14

정장입고시퍼요
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dazzi
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분석을할상인가
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힝잉잉이
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done

테라스
2021.08.12 15:16

done

비회원
2021.08.12 20:14

annyeong
2021.08.13 14:48

train과 test 데이터의 결측치를 다르게 처리하는 이유가 있을까요?

해만이
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done

아아유진
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뿌요
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세라자데
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done

minakusi
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그린티
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Willbee
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done

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DSJY
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다욤
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Solhong
2021.09.17 16:27

✅test 데이터의 결측치를 인자값으로 대체한 이유가 궁금합니다.

지내니
2021.09.21 10:30

찬찬이
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Arniel
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done

neppy
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진리의 탐구자
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changhyeon
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done

향기
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ikmarch28
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쇠질하는코린이
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junghyuntaek
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HU
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done

MINGAHAHA
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왼쪽눈썹왁싱
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cori
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코딩코기
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done

가르치조림
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mage
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done

cberrys
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coddinggoldfish
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DDoS
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mission clear

jinius94
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아자액션가면
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letsbig
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breaktime
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히9
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gpflr
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sunnydays
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순무
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😉

Hod0ri
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지금노플
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sotanfdl
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maxpark
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V

maxpark
2021.12.12 16:41

삭제된 댓글입니다

GOKILDONG
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done

baby_perm
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done

하랴랴
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done

녹삭
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done

단발토끼쓰
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MMMMMMMMMMMMMMMMMMMM
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done

moran
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마앙고
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s_nana
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츠무
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암냠냠
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done

cm
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자퇴생
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done

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done

yongE
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done

benelli
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done

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done

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djffjdEndEkd
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✅ 

inuin
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done

isoy
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done

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done

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done

minelolo
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done

곽진섭
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done 

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done

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done

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done

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done

powerwook
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mansig
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준용_Choi
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navy
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YGstar
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acebed
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Kdata
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LS
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done

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done

코딩백수
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done

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지모
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done

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미키
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pp.m
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rkdls
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done

KIM2327
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48hour
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i do

이쑤
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done

krooner
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린스바른빡빡이
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yell
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done

deus_ex_marchina
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done

그린이
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khloee
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김현배
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라다나가
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kreimben
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살랑
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샤돌
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done

Wefe
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done

dnd404
2022.06.29 14:49

rhkdgml
2022.06.30 14:39

Y2J
2022.07.04 15:36

양현모든지쓸어버리겠다
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MINKYU
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nigel
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dnwne
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whdgus928
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done

forest_yoon
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엘라27
2022.08.01 22:14

done

부기온앤온
2022.08.05 01:11

SauberHands
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도비콘
2022.08.07 15:16

화이팅!

곽샘
2022.08.08 15:35

💹

간지나는패션
2022.08.09 15:00

done

ai_pedagogy
2022.08.11 15:22

😀

김귤
2022.08.14 00:31

growleb
2022.08.22 21:50

굿전
2022.08.29 10:00

완료

귤이조아
2022.08.30 00:16

skanehfud279
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pysung
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done

재상쓰
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done

나중에보자
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done

징징E
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check

kevinlee
2022.09.20 20:18

baeksh0330
2022.09.24 15:35

hugo_o
2022.09.24 16:47

새봄
2022.09.24 23:49

지수98
2022.09.29 18:28

1Epoch
2022.10.01 21:12

train과 test 결측치를 다르게 처리하는 이유에 대해 궁금합니다.

플랏
2022.10.01 21:18

done

엿장수
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긍정의힘
2022.10.12 20:41

고구마망
2022.10.18 10:23

🍠

gnt0000
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done

sk100
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done

nImoS
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 ✅

yun_
2022.11.03 17:12

done

keogh
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타콕
2022.11.14 22:57

엽스
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엽스
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savvyall
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done

규칙기반-형태소분석기
2022.12.19 10:55

하이랑
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액정깨진아이
2022.12.31 19:37

done

zeus999
2023.01.01 16:45

done

웅버
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유정잉
2023.01.04 17:32

ickhwan
2023.01.09 00:01

highllight
2023.01.11 16:23

ml.gil
2023.01.18 13:50

저예요저
2023.02.24 10:43

✅ 

래시포드
2023.03.06 17:06



래시포드
2023.03.06 17:06

래시포드
2023.03.06 17:06



래시포드
2023.03.06 17:07

김시옷
2023.05.29 15:32

done+

johnchoi44
2023.06.02 12:01

done

jws9490
2023.07.03 17:48

done

이믄서
2024.01.10 00:07

이전 글
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현재 글
Lv1 전처리 2/2 python 파이썬 결측치삭제,대체(dropna, fillna)
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다음 글
인덱싱을 위한 Pandas .iloc .loc 사용 방법 데이터 분석 및 조작을위한
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