| veg_relation {vegtable} | R Documentation |
Retrieve or replace relations in vegtable objects
Description
Tables providing information about levels of categorical variables in the
header are called popups in Turboveg databases
but relations in vegtable objects.
Such variables will be converted into factors in the slot header according
to the levels and their sorting in the respective relation.
Usage
veg_relation(vegtable, relation, ...)
## S4 method for signature 'vegtable,character'
veg_relation(vegtable, relation, match_header = FALSE, ...)
veg_relation(vegtable) <- value
## S4 replacement method for signature 'vegtable,data.frame'
veg_relation(vegtable) <- value
Arguments
vegtable |
An object of class vegtable. |
relation |
A character value indicating the relation table to be retrieved or replaced. |
... |
Further arguments to be passed among methods. |
match_header |
A logical vector, whether only levels occurring in slot
|
value |
A data frame containing the new veg_relation. |
Value
This function retrieves and object of class data.frame.
In the replacement method, an object of class vegtable, including
value in the slot relations.
Author(s)
Miguel Alvarez kamapu78@gmail.com
Examples
## overview of references
veg_relation(Kenya_veg, "REFERENCE")