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Showing papers by "Indian Agricultural Statistics Research Institute published in 1979"



Journal ArticleDOI
TL;DR: In this article, a series of Group Divisible Second Order Rotatable (GDR) designs were obtained by decomposing the v-dimensional space corresponding to v-factors under consideration into three mutually orthogonal spaces.
Abstract: The Group Divisible Rotatable (GDR) designs are the designs in which the factors get divided into groups such that for the factors within group, the designs are rotatable. In the present paper we have obtained a series of Group Divisible Second Order Rotatable designs, by decomposing the v-dimensional space corresponding to v-factors under consideration into three mutually orthogonal spaces. We have given the least squares estimates of the parameters, the analysis and construction of such designs.

4 citations


Journal ArticleDOI
TL;DR: In this paper, a method of constructing balanced and partially balanced ternary designs from balanced incomplete block designs and two methods of constructing partially balanced incomplete blocks from association schemes are presented.
Abstract: A method of constructing balanced and partially balanced ternary designs from balanced and partially balanced incomplete block designs, respectively, and two methods of constructing partially balanced ternary designs from association schemes are obtained. Two new and efficient balanced ternary designs having K < V and R ≦ 20 are obtained by the first method.

3 citations


Journal ArticleDOI
TL;DR: In this article, a procedure of obtaining an estimator (as a linear combination of a set of ratio estimators) whose bias can be reduced to a desired degree of sample size without any additional loss in efficiency is proposed.
Abstract: This paper advocates a procedure of obtaining an estimator (as a linear combination of a set of ratio estimators) whose bias can be reduced to a desired degree of sample size without any additional loss in efficiency.