Tom Nicholas

@pbranson you're asking great questions but I'm going to move this discussion over to #134 so as not to confuse it with the original purpose of this issue.

To summarize, the syntax proposed above would be: ### node manipulation ```python # create a new subgroup dt['folder'] = DataTree() # works ``` ### computation ```python # apply a method...

> I like option (a): a) forbid all data manipulation via dt.ds, only allowing any manipulation on dt (proposed above). I think I'm going to do that first just because...

Hi @mraspaud , thanks so much for your interest! > So it would be really nice if there was an interface for adding custom engines to read that data (multiple...

Hi @mgrover1! Quick Q: If the file is `.nc` then what is your custom engine doing? > What is the best way of adding our new engines so we can...

@oriolabril would these types of functions be sufficient for ArViz's usecases you think? From https://github.com/arviz-devs/arviz/issues/2015#issuecomment-1106957255: > dt[["posterior", "posterior_predictive"]] is not possible > > getting a subset of the datatree that...

I had not seen that issue, thanks @dcherian

> My main question when thinking about using filter is storing the results back. Yes that's the tricky bit, because if you want to return a tree then you might...

Thanks for taking a stab at this @keewis ! > the workaround of manually setting an arbitrary but sufficient absolute width works, though, so I'd expect this to be a...

We should include @rabernat's [tutorial on merging datasets](https://github.com/pydata/xarray/pull/3131) (from 2019 :grimacing: ) into this repo - it looks more suitable for including here than in the main documentation.