Delete Dataset via API?

Hi,

I am trying to replace the contents of a Dataset bound to a Report. Need to do it entirely via API.

For example, initially it has X tables, with some rows.

I want to change it to Y tables, all with different names, and different row data.

1) Delete the Dataset, then create a new one, and rebind it to the Report.

I do not see the option to Delete a Dataset via API....how come?

2) The workaround I was thinking of was DeleteRows and UpdateTableSchema. But if (in the above example), Y>X, I don't see an option to AddTables to a Dataset, or UpdateSchema for a Dataset.

Anyone know how a "Swap out" for a Dataset can be accomplished via API? This is quite a roadblock.

Thanks.