Writing Transformations

[mksalmon]

In my opinion adding a section introducing and writing transformations would be a good addition to the Data Cleaning with OpenRefine for Ecologists. This section would introduce GREL and would describe how to write a valid GREL expressions. Google Refine Expression Language (GREL) is a powerful tool in data cleaning using OpenRefine and would be a good addition to this lesson. The writing transformations is included in the OpenRefine workshop in Library Carpentry.

[villanueval]

Link to Library Carpentry lesson: https://librarycarpentry.org/lc-open-refine/07-introduction-to-transformations/index.html

https://github.com/LibraryCarpentry/lc-open-refine/blob/gh-pages/_episodes/07-introduction-to-transformations.md

[villanueval]

The lesson now has a step for applying GREL expressions. Will need to expand a bit to explain them better.