xvardef {xpose4} | R Documentation |
Extract and set Xpose variable definitions.
Description
This function extracts and set Xpose variable definitions in "xpose.data" objects.
Usage
xvardef(x, object)
xvardef(object) <- value
Arguments
x |
The name of an xpose variable (see below). |
object |
An |
value |
A two element vector of which the first element is the name of the variable and the second the column name in the Data slot of the object. |
Details
The Xpose variable definitions are used to map particular variable types to
column names in the data.frame in the Data slot of the "xpose.data" object.
The single-valued Xpose variable definitions are: id, idlab, idv, occ,
dv, pred, ipred, iwres, res
. The (potentially) vector-valued Xpose variable
definitions are: parms, covariates, ranpar, tvparms
(parameters,
covariates, random effects parameters=etas, typical value parameters). The
default values of these can be found in the createXposeClasses
function.
Value
Returns a string with the name of the data variable defined as the Xpose data variable.
Functions
-
xvardef(object) <- value
: reset the which column the label dv points to in the Data slot of the xpose database object
Author(s)
Niclas Jonsson
See Also
xpose.data-class
,xpose.prefs-class
Examples
xpdb <- simpraz.xpdb
## get the column name in the Data slot of object xpdb
## corresponding to the label dv
xvardef("dv", xpdb)
## reset the which column the label dv points to in the Data slot of
## object xpdb
xvardef(xpdb) <- c("dv", "DVA")