Retrieve the value of an attribute column.
getAttributeColumn(object, attr_name, warn_missing = c("attr", "column"))
Arguments
- object
The object to extract the attribute value from.
- attr_name
The name of the attribute to extract
- warn_missing
Give a warning if the "attr"ibute or "column" is missing.
Character vector with zero, one, or both of "attr" and "column".
Value
The value of the attribute (or NULL if the attribute is not set or
the column does not exist)