목록2023/11/03 (13)

Data Analyst KIM

[ML] Kaggle_뇌졸중 데이터를 활용한 분류모델 만들기(불균형데이터,SMOTE)

Cerebral Stroke Prediction-Imbalanced Dataset Identify Stroke on Imbalanced Dataset www.kaggle.com 1. 라이브러리 불러오기 import numpy as np import pandas as pd import matplotlib.pyplot as plt import matplotlib.patches as mpatches from sklearn.impute import KNNImputer #Imputation %matplotlib inline import warnings warnings.filterwarnings("ignore") 2. 데이터 확인 df = pd.read_csv('dataset.csv') df.info() impor..
데이터 분석/ML&DL&NLP 2023. 11. 3. 16:38
[MySQL] 자동차 대여 기록 별 대여 금액 구하기(프로그래머스)

WITH tab AS ( SELECT car.daily_fee , car.car_type , his.history_id , DATEDIFF(END_DATE, START_DATE) + 1 AS period , CASE WHEN DATEDIFF(END_DATE, START_DATE) + 1 >= 90 THEN '90일 이상' WHEN DATEDIFF(END_DATE, START_DATE) + 1 >= 30 THEN '30일 이상' WHEN DATEDIFF(END_DATE, START_DATE) + 1 >= 7 THEN '7일 이상' ELSE 'NONE' END AS duration_type FROM CAR_RENTAL_COMPANY_RENTAL_HISTORY AS his INNER JOIN CAR_RENTA..
데이터 분석/Coding Test 2023. 11. 3. 08:53
[MySQL] 오프라인/온라인 판매 데이터 통합하기(프로그래머스)

SELECT DATE_FORMAT(SALES_DATE,"%Y-%m-%d") SALES_DATE , PRODUCT_ID , USER_ID , SALES_AMOUNT FROM ONLINE_SALE WHERE SALES_DATE >= '2022-03-01' and SALES_DATE = '2022-03-01' and SALES_DATE < '2022-04-01' ORDER BY SALES_DATE , PRODUCT_ID , USER_ID
데이터 분석/Coding Test 2023. 11. 3. 08:52
[MySQL] 그룹별 조건에 맞는 식당 목록 출력하기(프로그래머스)

SELECT MEMBER_NAME , REVIEW_TEXT , DATE_FORMAT(r.REVIEW_DATE,'%Y-%m-%d') AS REVIEW_DATE FROM MEMBER_PROFILE m INNER JOIN REST_REVIEW r ON m.MEMBER_ID=r.MEMBER_ID WHERE m.MEMBER_ID = (SELECT MEMBER_ID FROM REST_REVIEW GROUP BY MEMBER_ID ORDER BY COUNT(MEMBER_ID) DESC LIMIT 1) ORDER BY REVIEW_DATE,REVIEW_TEXT
데이터 분석/Coding Test 2023. 11. 3. 08:50
[MySQL] 대여 횟수가 많은 자동차들의 월별 대여 횟수 구하기(프로그래머스)

SELECT MONTH(START_DATE) AS MONTH , CAR_ID , COUNT(*) AS RECORDS FROM CAR_RENTAL_COMPANY_RENTAL_HISTORY WHERE DATE_FORMAT(START_DATE,'%Y-%m') BETWEEN '2022-08' AND '2022-10' AND CAR_ID IN (SELECT CAR_ID FROM CAR_RENTAL_COMPANY_RENTAL_HISTORY WHERE DATE_FORMAT(START_DATE,'%Y-%m') BETWEEN '2022-08' AND '2022-10' GROUP BY CAR_ID HAVING COUNT(CAR_ID) >= 5) GROUP BY MONTH(START_DATE), CAR_ID HAVING R..
데이터 분석/Coding Test 2023. 11. 3. 08:49
[MySQL] 저자 별 카테고리 별 매출액 집계하기(프로그래머스)

SELECT a.AUTHOR_ID , a.AUTHOR_NAME , b.CATEGORY , SUM((SALES * PRICE)) AS TOTAL_SALES FROM BOOK b INNER JOIN AUTHOR a ON b.AUTHOR_ID = a.AUTHOR_ID INNER JOIN BOOK_SALES bs ON b.BOOK_ID = bs.BOOK_ID WHERE bs.SALES_DATE LIKE '2022-01%' GROUP BY b.CATEGORY, b.AUTHOR_ID ORDER BY AUTHOR_ID, CATEGORY DESC
데이터 분석/Coding Test 2023. 11. 3. 08:48
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