hayeke / rassignment Goto Github PK

#合并单订单中重复商品;子数据集1valdata
valdata<-makdata %>%

• select(c(销售数量,销售金额)) %>%
• aggregate(by=list(单据号=makdata$单据号,商品货号=makdata$商品货号),FUN=sum) %>%
• arrange(单据号) %>%
• merge(unique(makdata[,1:5]),by=c("单据号","商品货号"),all=FALSE) %>%
• mutate(销售单价=销售金额/销售数量)
  Error: Column 销售时间 is a date/time and must be stored as POSIXct, not POSIXlt.
  Call rlang::last_error() to see a backtrace

请问这是什么原因呢 如何修改 ‘销售时间’ 的格式？