set-column

```Clojure
user=> (set-column [[1 2] [4 5] [7 8]] 0 [9 9 9])
[[9 2] [9 5] [9 8]]
user=> (set-column [[1 2] [4 5] [7 8]] 1 4)
[[1 4] [4 4] [7 4]]
```