Describe the Enhancement

Issue dtcenter/MET#1371 enhances Series-Analysis to aggregate results through time. This is done with the -aggr command line option to specify the location of a previously generated Series-Analysis output file. If provided, Series-Analysis will read contingency table counts and partial sums from that file and aggregate those results with the newly provided pairs prior to computing output statistics.

To facilitate easily writing out ALL columns for those line type to be aggregated, the output_stats dictionary has been updated to support the ALL keyword for the CTC, SL1L12, SAL1L2, and PCT line types. Recommend using that instead of manually specifying the column names... since all are needed for the downstream aggregation logic.

If Series-Analysis is run with the -aggr command line option, and an expected field name is NOT found in that input file, it will error out stating the missing field name.

Please see @JohnHalleyGotway with questions about the -aggr option and/or @mpm-meto with questions about the science and intended use.

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