카테고리 없음 2개의 dataframe 합치기 (nan 없애고!) rongxian 2022. 12. 8. 13:24 merge 대신 update를 쓰자 (초간단) https://stackoverflow.com/questions/59045507/how-to-merge-two-dataframes-and-keep-the-non-nan-values-in-it How to merge two dataframes and keep the non -nan values in it df1 0 Name phone Marks 1 mark 1225 20.0 2 charles 165498 36.5 3 oscar 1567 nan 4 bucky 13579 22.0 5 austin 1365... stackoverflow.com