On Sat, 22 Jan 2011, Riccardo (Jack) Lucchetti wrote: I think a "clear" command might be quite useful (we have "dataset clear" but it's somewhat hard to find). To keep things reasonably simple, I'd suggest that it has three forks: * default, no options: clears everything * --dataset: clears the dataset only, leaves matrices etc. * --other: clears everything other than the dataset. Now "other" may not be the greatest label (suggestions welcome), but I'm not keen to add a slew of specific options (matrices, scalars, bundles, strings and so on, for clearing). Allin