Jim Pivarski

Iterating over Records and `ak.from_iter`

1

Currently, `ak.Record.__iter__` returns an iterator over its _field names_, which may be what a user expects if a Record were a [Mapping/MutableMapping](https://docs.python.org/3/library/collections.abc.html#collections.abc.Mapping) like a dict, but it's not. It's probably...

Prevent reducers like ak.sum on records (v1 and v2)

7

### Version of Awkward Array HEAD ### Description and code to reproduce @chadfreer just brought this up, but I seem to remember @lgray and/or @nsmith- asking about it a long...

### Version of Awkward Array HEAD ### Description and code to reproduce In scikit-hep/uproot5#620, a test named `test_gohep_output_file` is failing in `tolist`: ``` with uproot.open(skhep_testdata.data_path("uproot-issue413.root"))[ "mytree" ] as tree: assert...

Lengths of empty regular slices (in v2)

2

### Version of Awkward Array HEAD ### Description and code to reproduce At least for v2 and variable-length arrays, we get the right zero-slicing edge case: ```python >>> import awkward._v2...

The variable named `row_group_number` is not strictly right because the writer might write more than one row group in a call. It should be named `iteration_number`. _Originally posted by @jpivarski...

And the [new Awkward-Pandas wrapper](https://github.com/scikit-hep/awkward/wiki#pandas-integration) would be accessed with `ak.to_series` and `ak.from_series`. Either an Awkward Array is exploded into a whole DataFrame (or multiple DataFrames, if there are multiple jagged...

RDataFrame integration

10

This issue is to collect my thoughts about how RDataFrame integration could be done. Such a thing would be useful because physicists could then mix analyses using Awkward Array, Numba,...

Convenience methods for plotting and histogramming

4

### Description of new feature One thing that's a little annoying right now is getting data from Awkward Arrays into plots. A lot of my tutorials include stanzas like ```python...

New to/from_raggedtensor and to/from_nestedtensor functions

2

### Description of new feature TensorFlow's RaggedTensor has been around for a while and PyTorch's NestedTensor is new, but they should be conversion targets for Awkward Arrays. And then a...

We need a custom exception type for all errors related to missing behaviors

3

### Description of new feature Prompted by Dask needs (discussion with @martindurant and @douglasdavis), but probably a good idea overall. Losing behaviors is a common type of error and users...