You covered most everything Alex.

I'm a fan of inheriting from Dataset to handle Subregions. The user can
still add the "dataset" the same way to an Evaluation. Then the Evaluation
instance can run a separate eval loop to handle subregions. It makes
Evaluation more complicated but using naming convention to designate a
subregion will just be worse I feel. The DatasetProcessor could have a
function that takes a Dataset and subregion information and spits out a new
SubregionDataset (or some such meaningful name) instance that the user can
add to the Evaluation.

What does everyone think would be a good way of handling this?


-- Joyce


On Mon, Jul 29, 2013 at 11:36 AM, Goodman, Alexander (398J-Affiliate) <
[email protected]> wrote:

> Hi all,
>
> Being able to account for subregions will be a crucial part of running an
> evaluation and making the right plots as part of our OCW refactoring. Mike
> and I had a discussion last Friday on some ways to do this and we both
> thought that the best approach would make use of the Dataset class somehow.
> Some specific ideas we had include:
>
> 1) Designate datasets as subregional by convention. Specifically, this
> could be something like making a new dataset instance with the same name as
> the parent dataset but with the subregion name appended to the end with a
> leading underscore (eg name_R01, name_R02).
>
> 2) Values for a particular subregion could placed in a list or dictionary
> as an attribute of Dataset.
>
> 3) Make a subclass of Dataset explicitly for subregions.
>
> In general, any approach will add an additional complication to some
> component of the new OCW code in that the evaluation results / datasets
> need to get grouped together by subregion.
>
> My preferred approach is (3) since it adds the least amount of complication
> to the plotting. I particularly don't like (1) since enforcing a rule by
> convention would add restrictions to users on valid names for datasets, for
> example a dataset name like 'TRMM_hourly_precip' would make it difficult to
> incorporate subregions.
>
> Mike, my memory since our last meeting is a bit fuzzy so please clarify or
> correct any of my points if I am wrong here. I would like to hear other
> ideas or opinions as to the best approach for the subregion problem.
>
> Thanks,
> Alex
>
> --
> Alex Goodman
>

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