data2.results(1,1).info would be considered different than what you wrote. But it probably will not work, as the documentation says specifically,
matfile does not support indexing into:
- Variables of tables
- Cells of cell arrays
- Fields of structure arrays
- User-defined classes
- Sparse arrays
What this tells me is that you would need to use something like,
data2results = data2.results(1,1);
after which you would be able to access data2results.info because the structure would have been completely loaded in.
Only the top level index of a variable can be loaded selectively. It is not possible to selectively load, for example, results(1,1).signal(1,42)
One workaround for this would be to put all of the signal (over possibly multiple struct indices) into a single variable, and keep a smaller struct that indicated the indices into the larger variable. Load the housekeeping struct to find out which indices into the mass storage struct you need and use matfile to bring only those indices into memory.
