Original Message - From: "Isobel Clark"
[EMAIL PROTECTED]To: "Chaosheng Zhang"
[EMAIL PROTECTED]Cc: [EMAIL PROTECTED]Sent:
Tuesday, March 09, 2004 11:34 PMSubject: AI-GEOSTATS: Re: mixtures of
populations AH me, the English language slips away from me
again. I sai
, March 09, 2004 3:34 PM
To: Chaosheng Zhang
Cc: [EMAIL PROTECTED]
Subject: AI-GEOSTATS: Re: mixtures of populations
AH me, the English language slips away from me again.
I said that the PRESENCE {pardon the capitals, no way
to italicise email} of more than one population is
indicated by the points
Hello All
The common 'Normal Score' transform assumes one
population. Transformations such as rank or logarithm
do not assume one population.
The best way to identify likely mixtures is with
programs such as Peter MacDonald's Mix (cited in
Ruben's email I think):
AH me, the English language slips away from me again.
I said that the PRESENCE {pardon the capitals, no way
to italicise email} of more than one population is
indicated by the points of inflexion on the
probability plot. Not that these were breakpoints
between populations.
Normal (or lognormal)
