Re: Suggestion: add the possibility to apply multiple operations to a single column (or multiple columns)

[Tim Rice]

> Ranges like 1-2,4 could be less straightforward, especially when combined with the former idea of providing 
> multiple operations simultaneously. When preparing a test for "mean,max,count 1-2,4", should the 
> test output columns like "mean_1, max_1, count_1, mean_2, max_2, count_2, mean_4, max_4, count_4", 
> or "mean_1, max_1, count_1, mean_2, max_2, count_2, mean_4, max_4, count_4", or something else?

Ahem, those two suggestions should be different to each other:

* mean_1, max_1, count_1, mean_2, max_2, count_2, mean_4, max_4, count_4

vs

* mean_1, mean_2, mean_4, max_1, max_2, max_4, count_1, count_2, count_4