asym4 {rsdNE} | R Documentation |
This generates a class of asymmetric rotatable response surface designs with neighbour effects under a polynomial model of order max(s1,s2)-1
Description
This function generates asymmetrical rotatable response surface designs in the presence of neighbour effects for (n1 + n2) factors, n1 factors at s1 levels and another n2 factors at s2 levels.
Usage
asym4(s1, n1, s2, n2, s3, n3, c = 0.1)
Arguments
s1 |
Number of levels of n1 factors, 1<s1<=8 |
n1 |
Number of factors possesses s1 levels, 1<=n1<=4 |
s2 |
Number of levels of n2 factors, 1<s2<=8 |
n2 |
Number of factors possesses s2 levels, 1<=n2<=4 |
s3 |
Number of levels of n3 factors, 1<s3<=8 |
n3 |
Number of factors possesses s3 levels, 1<s3<=8 |
c |
Value of alpha (Coefficient of neighbour effects), 0<=c<=1 |
Value
his function generates rotatable designs as well as Z_prime_Z matrix, inv(Z_primeZ) matrix and variance estimated response for the (s1^n1 * s2^n2) factorial combination.
Note
Here any two of s1, s2 and s3 should not be multiple of each other.
Author(s)
Ashutosh Dalal, Division of Design of Experiments,ICAR-IASRI, New Delhi. Seema Jaggi, Education Division, ICAR, Krishi Anusandhan Bhawan - II, Pusa, New Delhi. Eldho Varghese,Fishery Resources Assessment Division,ICAR-CMFRI, Kochi. Subhasish Sarkar, Division of Computer Application,ICAR-IASRI, New Delhi. Arpan Bhowmik, Division of Design of Experiments,ICAR-IASRI, New Delhi. Cini Varghese, Division of Design of Experiments,ICAR-IASRI, New Delhi. Anindita Datta, Division of Design of Experiments,ICAR-IASRI, New Delhi. Soumen Pal, Division of Computer Application,ICAR-IASRI, New Delhi.
References
Dalal, 2021, Unpublished M.Sc. Thesis, IARI, New Delhi Rotatable Response Surface Designs for S1^n1 x S2^n2 Incorporating Neighbour Effects by Dalal et al. 2025(<doi:https://doi.org/10.57805/revstat.v23i2.513>).
Examples
## Not run:
library(rsdNE)
asym4(2,2,3,2,5,2,0.1)
## End(Not run)