R: Get and set attributes values for items in an attrData object
attrDataItem-methods
R Documentation
Get and set attributes values for items in an attrData object
Description
The attrDataItem method provides get/set access to items stored
in a attrData-class object.
Usage
attrDataItem(self, x, attr)
attrDataItem(self, x, attr) <- value
Arguments
self
A attrData-class instance
x
A character vector of item names
attr
A character vector of length 1 giving the attribute
name to get/set. Note that the attribute name must have already been
defined for the attrData object via
attrDefaults. If missing, return a list of all
attributes for the specified nodes.
value
An R object to set as the attribute value for the
specified items. If the object has length one or does not have a
length method defined, it will be assigned to all items in x.
If the length of value is the same as x, the
corresponding elements will be assigned. We will add an argument to
indicate that the value is to be taken as-is for those cases
where the lengths are the same coincidentally.