我一直在努力做兩個數據幀之間的條件和。我嘗試重新創建數據(在我真實的工作問題中重新創建它的確切形式),所以我現在必須在Excel中的不同工作表之間運行一些可能非常簡單的sumif。我是R的新手,所以任何幫助將不勝感激!SUMIFS等價於來自不同數據幀的R
x1 <- data.frame("ClientID" = c("75","85","95", "75","85","95", "75","85","95"), "Jan2014" = c(80.25, 96.47, 94.44, 85.29, 97.66, 82.33, 35.44, 55.56, 88.88), "Feb2014" = c(90.25, 46.44, 54.54, 86.29, 87.66, 52.33, 55.44, 44.56, 78.87))
column.names <- c("ClientID", "Jan2014", "Feb2014")
ClientID <- x1$ClientID
ClientID <- unique(ClientID)
rows.no <- length(ClientID)
column.no <- length(column.names)
x2 <- data.frame(matrix(nrow=rows.no, ncol = column.no))
colnames(x2) <- column.names
x2$ClientID <- ClientID
#I want to have the totals for each of the Jan2014 and Feb2014 columsn at the x2 data table, based on the x1 table (sumifs equivalent)
x2$Jan2014 <-
x2$Feb2014 <-
只是做'庫(dplyr); X1%>%GROUP_BY( ClientID)%>%summarise_all(sum)'或'aggregate(。〜ClientID,df1,sum)' – akrun