rsdNE (version 1.2.0)

asym1: 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)

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.

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

Author

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)