Support grouping data during scorecard creation

[bikegeek]

Describe the New Feature

From this METplus Discussion: https://github.com/dtcenter/METplus/discussions/2734

It appears that the user needs to group input data while creating the scorecard, as specified in this issue: https://github.com/dtcenter/METviewer/issues/16

However, it appears that this is not working:

NameError: Derived curve can't be calculated. Multiple values for one valid date/fcst_lead

Currently, users will need to group data via MET's stat_analysis tool.

Acceptance Testing

List input data types and sources. Describe tests required for new functionality.

Time Estimate

Estimate the amount of work required here. Issues should represent approximately 1 to 3 days of work.

Sub-Issues

Consider breaking the new feature down into sub-issues.

• [ ] Add a checkbox for each sub-issue here.

Relevant Deadlines

List relevant project deadlines here or state NONE.

Funding Source

Define the source of funding and account keys here or state NONE.

Define the Metadata

Assignee

• [ ] Select engineer(s) or no engineer required
• [ ] Select scientist(s) or no scientist required

Labels

• [ ] Review default alert labels
• [ ] Select component(s)
• [ ] Select priority
• [ ] Select requestor(s)

Milestone and Projects

• [ ] Select Milestone as a METviewer-X.Y.Z version, Consider for Next Release, or Backlog of Development Ideas
• [ ] For a METviewer-X.Y.Z version, select the METviewer-X.Y.Z Development project

Define Related Issue(s)

Consider the impact to the other METplus components.

• [x] May require some additional work with METcalcpy components: scorecard.py and agg_stat.py

New Feature Checklist

See the METplus Workflow for details.

• [ ] Complete the issue definition above, including the Time Estimate and Funding source.
• [ ] Fork this repository or create a branch of develop. Branch name: feature_<Issue Number>_<Description>
• [ ] Complete the development and test your changes.
• [ ] Add/update log messages for easier debugging.
• [ ] Add/update unit tests.
• [ ] Add/update documentation.
• [ ] Push local changes to GitHub.
• [ ] Submit a pull request to merge into develop. Pull request: feature <Issue Number> <Description>
• [ ] Define the pull request metadata, as permissions allow. Select: Reviewer(s) and Development issue Select: Milestone as the next official version Select: METviewer-X.Y.Z Development project for development toward the next official release
• [ ] Iterate until the reviewer(s) accept and merge your changes.
• [ ] Delete your fork or branch.
• [ ] Close this issue.