[英]How to get a new name for each element in a column based on other column in a data frame in R?
如果您的屏幕截图代表真实数据,则可以尝试
data.frame$new.customer.id <- paste("Customer", CustomerID / 100, sep = " ")
作为建议,将来您可以为您的数据提供一个具有代表性的示例,例如:
dput(yourData)
会产生类似:
structure(list(Receipt_no = 111:116, Customer_ID = c(100L, 100L,
200L, 300L, 100L, 400L), Customer_Name = structure(c(1L, 1L, 2L,
3L, 1L, 4L), .Label = c("Customer 1", "Customer 2", "Customer 3",
"Customer 4"), class = "factor")), .Names = c("Receipt_no", "Customer_ID",
"Customer_Name"), class = "data.frame", row.names = c(NA, -6L))
您可以类似地在dplyr中使用mutate。
library("dplyr")
tbl_df(yourData)%>%mutate(`Customer Name`=paste("Customer",as.numeric(unlist(yourData%>%select(2)))/100)
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