We are pleased to announce that Opal 2.16 is now available. Opal is OBiBa’s core database application for biobanks.
This release facilitates the documentation of the harmonization process by reading directly the variable properties from the column attributes of the R data.frame/tibble objects. Thus harmonization algorithms can be implemented along with their documentation in the metadata of the datasets. This approach has been successfully applied by the Maelstrom Research group. As a complement, the opalr R package provides some new utility functions (since version 1.3.0) for retrieving datasets from Opal into the local R session, annotating the harmonized datasets with taxonomy terms, applying data dictionary, and saving back the datasets as Opal tables.
Additional features implemented:
uniquehave been added,