Relations between optimum chemical balance weighing designs for v and v+1 objects
Relations between regular A-optimal chemical and spring balance weighing designs with diagonal covariance matrix of errors
In this paper, we study the relationships between regular A-optimal spring balance weighing designs and regular A-optimal chemical balance weighing designs. We give the basic relation between these designs in the case where the errors are uncorrelated and they have different variances. We give some examples of methods of construction of such designs.
Restricted estimation in unbalanced factorial models: an APL programs package.
This paper describes a set of programs that provide researchers with restricted effect estimations in unbalanced factorial models when several weighing systems are imposed upon those models. The main program performing such an analysis is known as REUFM, and is written in APL⊗PLUS for IBM/PC microcomputers. An example is given in order to ilustrate the programs.