asym1 {rsdNE} | R Documentation |
This generates a class of asymmetric rotatable response surface designs with neighbour effects under a second order model
Description
This function generates asymmetrical rotatable response surface designs in the presence of neighbour effects for 2n factors, n factors at 2 levels and another n factors at 3 levels.
Usage
asym1(n1, n2, c)
Arguments
n1 |
n1 factors having 2 levels, 1<=n1<=5 |
n2 |
n2 factors having 3 levels, 1<=n2<=5 |
c |
Value of alpha (Coefficient of neighbour effects), 0<=c<=1 |
Value
This function generates rotatable designs as well as Z_prime_Z matrix, inv(Z_primeZ) matrix and variance estimated response for the (2^n1 * 3^n2) factorial combination.
Note
Here 3 types of cases have been considered: (2^n1*3^n2), where, n1=n2=n; (2^n1*3), where, n1=n and n2=1; (2*3^n2), where, n1=1 and n2=n.
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
Verma et al.2021, Communication in Statistics – Simulation and Computation
Examples
library(rsdNE)
asym1(1,1,0.5)