All datasets published on PURR have metadata (documentation describing data) in their PURR records and within the data files themselves. These datasets have particularly clear metadata that students in any field should be able to understand.
The datasets listed here are not exhaustive, but provide examples of the various data formats represented in PURR's collection. To find more datasets like these, visit https://purr.purdue.edu/search.
Pro tip: start entering your search term into the "Enter tags" field, and PURR will suggest tags to choose from.