| rh {hero} | R Documentation |
Rotated H-transform
Description
A rotation of the H-transform of the array a by a
matrix x.
Usage
rh(x, a, transpose = FALSE)
Arguments
x |
A matrix-like object. See Details. |
a |
An d-dimensional array |
transpose |
A logical value. The Default is
|
Details
x should be matrix-like. This function has been
tested when x is a matrix object or a
Matrix.
Assuming a is of size c_1 \times c_2 \times
\dots \times c_d, then x is of size r \times
c_1.
Value
A rotated, h-transformed array
Author(s)
Joshua French. Based off code by Luo Xiao (see References).
References
Currie, I. D., Durban, M. and Eilers, P. H. (2006), Generalized linear array models with applications to multidimensional smoothing. Journal of the Royal Statistical Society: Series B (Statistical Methodology), 68: 259-280. <doi:10.1111/j.1467-9868.2006.00543.x>
Xiao, L. , Li, Y. and Ruppert, D. (2013), Fast bivariate P-splines: the sandwich smoother. J. R. Stat. Soc. B, 75: 577-599. <doi:10.1111/rssb.12007>
Examples
dim = c(10:12)
# construct random array
a = array(rnorm(prod(dim)), dim = dim)
# construct random matrix
x = matrix(rnorm(15 * dim[1]), nrow = 15)
rhxa = rh(x, a)