Alejandro de la Vega comments

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Alejandro de la Vega

'RunNode' object has no attribute 'get_collections'

This came up again for me... I think it's a pretty big bug so I'll try to get around to it. One easy fix would be to throw an error...

variables: Add sparse/dense mode for to to_df, and add alternative design matrix API to access sparse variables

`to_df` casts everything to dense, which is a problem for the `HRF` property of `BSM`. To be able to hand off `HRF` convolution to another program we need to be...

variables: Add sparse/dense mode for to to_df, and add alternative design matrix API to access sparse variables

@jmumford also requests this in order to look at the unconvolved regressors for model inspection

variables: Add sparse/dense mode for to to_df, and add alternative design matrix API to access sparse variables

This is actually more complex than it looks, because `BIDSStatsModelsNodeOutput` would need to keep in parallel both dense and sparse parts of the DM, so all logic downstream (i.e. handling...

FIX: Make lists and dicts hashable

@oesteban, @effigies and I chatted and decided that the `frozendicts` may cause problems for users, since its unfamiliar. Implementing flattening dicts is probably a better way to resolve this, and...

FIX: Make lists and dicts hashable

Oscar, thanks for the spirited defense. To be clear, my suggestion to solve (ii) with respect to "shorthand" functions for BIDS entity is primarily dealt by #749. I think this...

StatsModels: Make `group_by` mandatory

This is mandatory in the spec, so if not this is a bug

Evaluate ancpbids as a successor to bids.layout

ancpBIDS: > - instead of SQL, we have a custom query language without any external dependencies > - the data structure used to query against is an in-memory graph representation...

Evaluate ancpbids as a successor to bids.layout

The main current limitations of `pybids`: - Poor performance on large datasets We should determine is to what extent `SQL` is the cause of the performance problems in pybids, or...

Evaluate ancpbids as a successor to bids.layout

An informative exercise may be to use `ancpbids` instead of `BIDSLayout` in other modules of pybids such as `variables` and `modeling`. This would highlight differences in functionality between the two...