ffFullMatrix {BHH2} | R Documentation |
The function builds the full matrix with the constant term, main effects and interactions from a design matrix.
ffFullMatrix(X, x, maxInt, blk = NULL)
X |
numeric matrix. Design matrix. |
x |
numeric vector. Design matrix entries to use to construct the full model matrix. |
maxInt |
numeric. Highest interaction order. |
blk |
numeric matrix. Each column correspond to a blocking factor. |
Columns x
of matrix X
are used for main effects. All
the 2, ... , maxInt
order interaction are constructed.
The first columns of the final matrix correspond to the constant term (1's)
and block factors.
The function returns list with the following components:
Xa |
matrix |
. Augmented matrix with columns for the constant terms, blocking factors, main effects, second order interactions, ..., etc.
x |
numeric vector. Design matrix |
maxInt |
numeric. The highest interaction order. |
nTerms |
numeric vector. Contains the number of blocking factors, main effects, 2nd order interaction effects, ... , etc. |
Ernesto Barrios
print(X <- ffDesMatrix(5,gen=list(c(5,1,2,3,4)))) ffFullMatrix(X[,1:4],x=c(1,2,3,4),maxInt=2,blk=X[,5]) ffFullMatrix(X[,1:5],x=c(1,3,5),maxInt=3)