dataframe implementations

[ZombineDev via Digitalmars-d-learn]

On Thursday, 19 November 2015 at 06:33:06 UTC, Jay Norwood wrote:
> On Wednesday, 18 November 2015 at 22:46:01 UTC, jmh530 wrote:
>> My sense is that any data frame implementation should try to 
>> build on the work that's being done with n-dimensional slices.
>
> I've been watching that development, but I don't have a feel 
> for where it could be applied in this case, since it appears to 
> be focused on multi-dimensional slices of the same data type, 
> slicing up a single range.
>
> The dataframes often consist of different data types by column.
>
> How did you see the nd slices being used?
>
> Maybe the nd slices could be applied if you considered each row 
> to be the same structure, and slice by rows rather than 
> operating on columns.  Pandas supports a multi-dimension panel.
>  Maybe this would be the application for nd slices by row.

How about using a nd slice of Variant(s), or a more specialized 
type Algebraic type?

[1]: http://dlang.org/phobos/std_variant