我有一个包含数据行的pandas DataFrame:
# objectID grade OS method
object_id_0001 AAA Mac organic
object_id_0001 AAA Mac NA
object_id_0001 AAA NA organic
object_id_0002 NA NA NA
object_id_0002 ABC Win NA
即,同一对象ID通常会有多个条目,但有时/经常会有NAs。因此,我只是在寻找一种可以合并对象ID并报告非NA条目的方法,例如上面的内容缩小到:
object_id_0001 AAA Mac organic
object_id_0002 ABC Win NA
dropna()
函数的subset
参数?https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.dropna.html - petezurich