read main ODM objects from Excel files (ID and Code or corresponding column)
readMainOdmObjects(folder)
| folder | folder containing the files variables.xls, sources.xls, sites.xls, methods.xls. In each Excel file the cell range making up the actual table must be named "tabledata" |
|---|
list with elements variables, sources, sites,
methods each of which is a data frame with two columns (ID and code
or a similar column identifying the object).