Generation of 2n series fractional factorial plans robust against linear-trend

SUSHEEL KUMAR SARKAR; KRISHAN LAL; SUKANTA DASH; SUNIL KUMAR YADAV; HIMANSHU

doi:10.56093/ijas.v93i9.108863

Authors

SUSHEEL KUMAR SARKAR ICAR-Indian Agricultural Statistics Research Institute, Pusa, New Delhi 110 012, India
KRISHAN LAL ICAR-Indian Agricultural Statistics Research Institute, Pusa, New Delhi 110 012, India
SUKANTA DASH ICAR-Indian Agricultural Statistics Research Institute, Pusa, New Delhi 110 012, India
SUNIL KUMAR YADAV ICAR-Indian Agricultural Statistics Research Institute, Pusa, New Delhi 110 012, India
HIMANSHU ICAR-Indian Agricultural Statistics Research Institute, Pusa, New Delhi 110 012, India

https://doi.org/10.56093/ijas.v93i9.108863

Keywords:

Fold-over, Fractional factorial plan, Linear-trend-free plan, Run orders

Abstract

Trend-free design for single factor at two level factorial experiments (complete and fractional both) are available in literature but trend-free multi-factor design could not be traced in the literature. There are a number of experiments in agronomy, agricultural engineering and virology where factors are multi-level. Multi-level factorial/fractional factorial designs are not readily available, and there is a need to address this problem. Hence an attempt has been made to construct linear trend-free multi-level factorial/ fractional factorial main effect design with their cost consideration.

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