| fhstepDS {daewr} | R Documentation |
Forward Stepwise modeling taking into account special structure of Definitive Screening Design
Description
This function performs a single step of a forward stepwise regression by entering an additional 2nd order term to a model already created by FitDefSc.R or fhstepDS.R This function is called by FitDefSc.R
Usage
fhstepDS(y,des,m,c,prvm)
Arguments
y |
input - this is a data frame containing a single numeric column of response data. |
des |
input - this is a data frame containing the numeric columns of the candidate independent variables. The column names of des are of length 1 i.e., letters of the alphabet. The m three-level factors always preceed the c two-level factors in the design. |
m |
input - this is an integer equal to the number of three-level factors in the design |
c |
input - this is an integer equal to the number of two-level factors in the design. Note m+c must be equal to the number of columns of des. |
prvm |
input - this is a vector of text names of the terms in the model. This is created as the value resulting from running ihstep or fhstep. |
Value
returned vector of terms entered in the model at this step.
Author(s)
John Lawson