
TY  - JOUR
A1  - Gilmour, AR 
A1  - Atkins, KD 
T1  - Modelling the FFDA fibre diameter histogram of fleece wool as a mixture distribution
JF  - Australian Journal of Agricultural Research
JO  - Aust. J.  Agric. Res.
Y1  - 1992
VL  - 43
IS  - 8
SP  - 1777
EP  - 1788
KW  - wool;coarse edge statistics;fibre diameter distribution
UR  - https://doi.org/10.1071/AR9921777 
N2  - The histogram of wool fibre diameters obtained by processing fleece samples through the Fibre Fineness Distribution Analyser (FFDA) machine is modelled as a mixture of two normal distributions fitted on the log scale (model iv). The paper compares this model with a single normal distribution on the natural scale (model i), a single normal distribution on the log scale (model ii) and a mixture of two normal distributions on the natural scale (model iii). When fitted to 2544 fibre diameter histograms from Merino hoggets, these models gave average lack-of-fits, distributed as ¿225, of 549.6, 190.1, 93.5 and 39.5 for models i to iv respectively. Model iv is proposed as the basis for describing the FFDA fibre diameter histogram in sheep breeding. 
ER  -

