A change is a proposal, never a silent edit (plan § D-11): a new EDI revision,
a dead link, a DOI newly minted or an ERDDAP date_modified that moved is one
row here, for the dataset's questions.csv and the provider's Sheet.
Arguments
- observed
the tibble from
observe_distributions()- previous
the tibble from
read_distribution_observed(), or NULL
Value
A tibble dataset_key, url, field, was,
now — empty when nothing moved (or when there is no previous file).