grasp.scope {grasper} | R Documentation |
Scope list creator, generally called by grasp.model
and to be used with grasp.step.gam
in stepwise selection.
grasp.scope(sX = gr.selX, df = 4, calcdf = FALSE, trace = TRUE)
sX |
List coontaining the different Xs for each Ys |
df |
Number of degrees of freedom |
calcdf |
Let the smooth function "calculate" the degrees of freedom, see gam for details. |
trace |
Verbose output |
This function creates the scope list. It isn't of any use by itself. It is called by grasp.model
and used by
grasp.step.gam
for stepwise selection.
Fabien Fivaz \email{fabien.fivaz@bluewin.ch}
. Ported to R from GRASP for S-Plus written by A. Lehmann, J.R. Leathwich and J. McC Overton. Look at http://www.cscf.ch/grasp for details and update.
grasp.model
, grasp.start
and grasp.step.gam
.