Automatically generates spanners by splitting column names on a
delimiter character. For example, columns named
"hematology.wbc" and "hematology.rbc" produce a
spanner labelled "hematology" covering both columns.
Automatically generates spanners by splitting column names on a
delimiter character. For example, columns named
"hematology.wbc" and "hematology.rbc" produce a
spanner labelled "hematology" covering both columns.