Prediction of Wool Preparation Category for Classed Fleece Lines using a Uniformity Index

Abstract

AWTA Ltd has developed a measure of the uniformity of wool characteristics in a lot viz. the Uniformity Index (UI). The Index was obtained using Multiple Regression Analysis and is based on measures of Coefficient of Variation of Staple Length (CVL), Coefficient of Variation of Diameter (CVD), Coefficient of Variation of Strength (CVS), and variation in Position of Break (Uniformity of POB). The Index has been shown to differentiate between the majority of Bulk Classed and Classed Grower Lots in validation trials over a twelve month period. It is anticipated that, with the assistance of various sectors of the Australian wool industry, the UI can be shown to indicate differing levels of variation within sale lots in addition to predicting preparation category.

This paper is a sequel to an earlier paper, and extends the amount of data analysed to support the concept of the Uniformity Index.

Citation

"Prediction of Wool Preparation Category for Classed Fleece Lines using a Uniformity Index", P.R. Bryne, T.J. Mahar & R. W. Connors, Report CTF05, Commercial Technology Forum, IWTO, Nice Meeting, December 1998