This file describes the steps required to reorganize the input datasets. The goal of this reorganization is to improve the readability of the mapping scripts later.

Load libraries:

# 2 Read data

1. Define data types

2. Read literature references

3. Read taxon data

4. Read distribution data:

# 3 Compile reference data

The file `literature_references` includes all sources used to compile the DAISIE checklist.

1. Inspect `literature_references`:

Each source can be identified by its `sourceid` and is composed of: - a citation (`shortref`) and/or - a full references (`longref`) and/or - an url (`url`)

Most input files use the field `sourceid` to link with the sources included in `literature_references`. In the Darwin Core mapping process, we want to replace the `sourceid` with the full reference to each source. To accomplish this, we need to compile the full reference from: - `shortref` and/or - `longref` and/or - `url`

1. Inspect longref: