I have an Association with lots of key-value pairs. The values are integer numbers from a finite set. I'd like to group all the keys that have a certain number as value, and make a table with values (numbers) on top row (one per column) and each key set under each corresponding value.
I tried with GroupBy, with no success.
<|key1->2, key2->4, key3->4, key4->2, key5->7, key6->4|>
Output: a table like this:
| 2 | 4 | 7 | | key1 | key2 | key5 | | key4 | key3 | | | | key6 | |