我有一个像这样的数据框:
totalbalancetemp:number = (+this.balance) + (+this.pastAmount);
,我想获取此数据框:
df1 = pd.DataFrame({'users': ['user1','user1','user2','user2'], 'date': ['day1','day2','day1','day2'],'MBcount':[32,23,43,23],'target':['nan','up','nan','down']})