这是我的示例数据集:
mydata = data.frame (ID =c(1,2,3,4,5),
subject = c("His","Geo","Geo","His","Geo"),
age = c(21,24,26,23,26))
我想在顶部加一行.我希望它在ID列中显示"School 1",而所有其他列保持空白.以下是我想要的:
mydata = data.frame (ID =c("School 1",1,2,3,4,5),
subject = c(NA,"His","Geo","Geo","His","Geo"),
age = c(NA,21,24,26,23,26))
我try 了以下方法,但最终填充了所有列的值:
mydata <- rbind(c("School 1"), mydata)
我知道下面的代码可以满足我的需要,但我希望避免列出NA,因为我的数据集有很多列
mydata <- rbind(c("School 1", NA,NA), mydata)
感谢您的帮助!