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Schema

First step of boundary cleaning. A source delivery arrives with its own column names. This step maps every level's names and codes to the release schema (adm{n}_name, adm{n}_code) and copies each parent's columns onto its children.

  • Tutorial

    Learning-oriented. Map one file's columns, copy ancestor columns from a join layer, then fill the hierarchy down.

    Tutorial

  • How-to

    Task-oriented. Map each level below admin0, review the crosswalk, then join each parent onto its children.

    How-to

  • Reference

    Information-oriented. What schema-map, schema-join and schema-fill do, with their options and outputs.

    Reference

  • Explanation

    Understanding-oriented. How levels are detected from the data rather than from column names, and how each schema tool uses that.

    Explanation