I have a dataframe that is way bigger than it needs to be. Due to necessary transformations beforehand, I receive a dataframe looking like this:
| A | B | C | D | E | F | 
|---|---|---|---|---|---|
| 1.5 | 3 | 2 | a | 0 | 0 | 
| 1.5 | 3 | 2 | 0 | b | 0 | 
| 1.5 | 3 | 2 | 0 | 0 | c | 
This is what it should look like afterwards:
| A | B | C | D | E | F | 
|---|---|---|---|---|---|
| 1.5 | 3 | 2 | a | b | c | 
-----------------------------------------------------------------------------------
The second problem is that values are vertically listed, even though they could be next to each other. Example:
| A1 | A2 | C | 
|---|---|---|
| 1.5 | NA | 2 | 
| 1.5 | NA | 2 | 
| 2.5 | NA | 2 | 
Instead, I want this:
| A1 | A2 | C | 
|---|---|---|
| 1.5 | 2.5 | 2 | 
