我在R中有多个数组。每个数组都有以下结构:
一个。尺寸名称是字符
b。数组中的值是每个字符的频率。
c k j a d l n s
5 5 3 1 1 1 1 1
d j o a h i k q z r
4 4 4 3 2 2 2 1 1 1
我希望将这些数组合并为一个,以保留每个字母的频率 期望的输出:
c k j a d l n s o h i k q z r
[1] 5 5 3 1 1 1 1 1 0 0 0 0 0 0 0
[2] 0 0 4 3 4 0 0 0 4 2 2 2 1 1 1
如何做到这一点?
答案 0 :(得分:3)
尝试
Un1 <- union(names(v1), names(v2))
res <- do.call(rbind,lapply(list(v1, v2), function(x)
setNames(x[match(Un1, names(x))], Un1)))
res[is.na(res)] <- 0
res
# c k j a d l n s o h i q z r
#[1,] 5 5 3 1 1 1 1 1 0 0 0 0 0 0
#[2,] 0 2 4 3 4 0 0 0 4 2 2 1 1 1
或者
res1 <- as.matrix(merge(as.data.frame.list(v2), as.data.frame.list(v1),
all=TRUE)[Un1])
res1[is.na(res1)] <- 0
res1
# c k j a d l n s o h i q z r
#[1,] 5 5 3 1 1 1 1 1 0 0 0 0 0 0
#[2,] 0 2 4 3 4 0 0 0 4 2 2 1 1 1
v1 <- structure(c(5, 5, 3, 1, 1, 1, 1, 1), .Names = c("c", "k", "j",
"a", "d", "l", "n", "s"))
v2 <- structure(c(4, 4, 4, 3, 2, 2, 2, 1, 1, 1), .Names = c("d", "j",
"o", "a", "h", "i", "k", "q", "z", "r"))