Assuming I have a melted `data.frame` that looks like this:

```
  variable       value
1         A -0.19933093
2         A -1.19043346
3         A -1.32248172
4         A -1.98644507
5         A -0.07930953
6         B -0.10074686
7         B  0.72451483
8         B -0.40914044
9         B  0.02913376
10        B  0.16062491

```

How do I get it to:

```
  A       B
-0.19933093 -0.10074686
-1.19043346  0.72451483
-1.32248172 -0.40914044
-1.98644507  0.02913376
-0.07930953  0.16062491

```

Seems trivial but I am blanking on an answer. `dcast` and `acast` do not seem to do it. My goal is to do this on larger datasets and turn the end product into a `matrix` with the column names to be the variable names. I tried playing with `daply` and `laply` (before melting) without much luck.