A "cran" has multiple meanings depending on the context:
- In the context of the R programming language, CRAN stands for the Comprehensive R Archive Network. It is the primary repository for R packages, hosting thousands of packages that users can download and install to extend the functionality of R. It acts as a central hub for sharing and maintaining high-quality packages for statistical computing and data analysis.
- In a historical and measurement context, a "cran" is a unit of capacity used primarily for measuring fresh herring. It is equivalent to about 37.5 imperial gallons (approximately 170.5 liters) and was used in the North Sea fishing industry to measure landed uncleaned herring. The term comes from Scottish Gaelic "crann," meaning a lot or measure of herring.
- Additionally, "cran" in Scottish refers to a common swift (a type of bird).
So, depending on your specific context, "cran" could refer to an R package repository, a measure of herring quantity, or a bird species. If you are referring to the technical term in programming and data science, CRAN is the Comprehensive R Archive Network. If you mean the traditional unit, it relates to the fishery industry measurement.