我有两组数据:
town <- c("a","b","c","d","e")
point1 <- c(1,2,3,4,5)
point2 <- c(3,6,1,7,9)
point3 <- c(1,76,3,77,32)
a <- cbind(town,point1,point2,point3)
town point1 point2 point3
[1,] "a" "1" "3" "1"
[2,] "b" "2" "6" "76"
[3,] "c" "3" "1" "3"
[4,] "d" "4" "7" "77"
[5,] "e" "5" "9" "32"
town <- c("f","f")
point3 <- c(4,5)
b <- cbind(town,point3)
town point3
[1,] "f" "4"
[2,] "f" "5"
我想将它们合并到一个数据框中,使其看起来像这样:
town<-c("a","b","c","d","e","f","f")
point1<-c(1,2,3,4,5,NA,NA)
point2<-c(3,6,1,7,9,NA,NA)
point3<-c(1,76,3,77,32,4,5)
c<-cbind(town,point1,point2,point3)
town point1 point2 point3
[1,] "a" "1" "3" "1"
[2,] "b" "2" "6" "76"
[3,] "c" "3" "1" "3"
[4,] "d" "4" "7" "77"
[5,] "e" "5" "9" "32"
[6,] "f" NA NA "4"
[7,] "f" NA NA "5"
我以为c <- rbind(a$town, b$town)
可以工作,但没有取得任何成功。
最佳答案
library(gtools)
smartbind(a,b)
town point1 point2 point3
1:1 a 1 3 1
1:2 b 2 6 76
1:3 c 3 1 3
1:4 d 4 7 77
1:5 e 5 9 32
2:1 f <NA> <NA> 4
2:2 f <NA> <NA> 5
关于r - 使用来自单独数据框中的数据将新行添加到数据框中,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35138728/