user3354212 - 8 months ago 32

R Question

I have a list contain different vectors with different length

`list1 <- list(a = 1:10, b = 3:20, c = c(1,3,7, 9,18,20,24,28))`

I would like to eliminate any elements from all vectors in

`list1`

`d <- c(1,3,7,8,20)`

I expect the result as:

`list(a = c(2,4:6,9:10), b = c(4:6,9:19), c = c(9,18,24,28))`

Answer

For example

```
lapply(list1, setdiff, d)
```

gives

```
$a
[1] 2 4 5 6 9 10
$b
[1] 4 5 6 9 10 11 12 13 14 15 16 17 18 19
$c
[1] 9 18 24 28
```

Read `?setdiff`

for related functions.