Re: KRS book: Geology

Eric Stevens wrote:  c0oer1p5d29qcqod3dk5tk9hd7l1hq9r78@xxxxxxx,

On Sun, 1 Jan 2006 02:05:34 +0100, "Peter Alaca" <P.Alaca@xxxxxxx>
wrote:

Eric Stevens wrote: ui0er1haaqgjv65jvqcrj1nb8cf7v5pr74@xxxxxxx,
"Peter Alaca" wrote:
Eric Stevens wrote: 

Please - please - read the book if you are you are going to
continue consider sounding off.
Ojakangas plotted six different types of greywacke on his
particular triangle diagram and almost certainly examined
many more specimens he did not consider worth plotting.


That would be a very unscientific procedure,
since a (triangle) scatter diagram is not only
meant to show similarities, but also differences.
I am sure Ojakangas, if he is a serious scientistis,
would not very happy with your comment above.


I understand him to be looking for similarities. When examining
samples widly different from that of the KRS I would expect he would
discard them from further consideration. He was looking for, and
plotting, samples which were similar.


Why plotting similar samples?
A triangle scattergram is used to show the relativer
composition of samples based on three elements.
You feed the program with all relevant data and look
for clustering and _differences_.
You don't feed it with similar samples. If Ojakangas
did that, then there is every reason to distrust him.


Aah. I see the root of our problem. You think the scattergram referred
to is Ojakangas's working diagram.


No, I think it is the published scattergram,
and if he did what you say he did, then he
presentend only 'positive' results.

I think it is the obe he used to plot the alternatives
closest to the that of the KRS.


And you believe him without seeing the _all_ the results?

(btw. What is an "obe"?
I hope it is not a out-of-body experience)

--
º°º°º°º < Peter Alaca > º°º°º°º°º°º°º°º°º°º°º°º°º°º°º°º°º°º°


.

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