실전 프로젝트 발제날. 우선 코드카타더보기 시계열 코드 6번. LOT 단위 요약 통계 생import pandas as pddata = {'LOT_ID': ['LOT123','LOT123','LOT123','LOT123','LOT123','LOT124','LOT124','LOT124','LOT124','LOT124'],'PRODUCT': [1, 2, 3, 4, 5, 1, 2, 3, 4, 5],'WIDTH': [10.23, 10.15, 9.87, 10.31, 10.08,11.02, 10.94, 11.21, 11.13, 10.87],'DEFECT': ['OK','OK','NG','OK','OK','OK','NG','NG','OK','OK']}df = pd.DataFrame(data)test = df.group..
