The later papers discuss the variations on the lognormal prompted by Sichel's
revivavl of interest in the late 1980s. The actual lognormal basis is not
discussed in those papers.
I am tracking down a copy of my original paper to add the mathematical
addenda on the 1987 paper and will
Asunto: Re: AI-GEOSTATS: Sichel's t estimator
The later papers discuss the variations on the lognormal prompted by
Sichel's revivavl of interest in the late 1980s. The actual lognormal basis
is not discussed in those papers.
I am tracking down a copy of my original paper to add the mathematical
Isobel,
in an earlier reply you mentioned Sichel's t estimator and a paper of
yours discussing it. I downloaded it, but hélas, addendum 2 which
apparently is about Sichel's t is missing. (Sichel's original paper from
1952 is a bit difficult to get.)
Can you help ? Or does anybody know any
Hi Peter,
Additional work has been done by Sichel and Kleingeld more recently.
They should be more available than the original one :
Comparative study of three frequency-distribution models for use in
ore evaluation
Sichel, H S; Kleingeld, W J; Assibey-Bonsu, W J S Afr Inst Min Metall
V92, N4,
