View source: R/class-general.R
getAttributeColumn | R Documentation |
Retrieve the value of an attribute column.
getAttributeColumn(object, attr_name, warn_missing = c("attr", "column"))
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". |
The value of the attribute (or NULL
if the attribute is not set or
the column does not exist)
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