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Author Topic:   Statistical analysis of tree rings
JonF
Member (Idle past 191 days)
Posts: 6174
Joined: 06-23-2003


Message 16 of 34 (503841)
03-22-2009 7:51 PM
Reply to: Message 9 by Percy
03-22-2009 4:37 PM


I can't see how you know they're for bristle cone pines:
From the file you can't tell. I found it from Biblical Chronology and the 8,000-Year-Long Bristlecone Pine Tree-Ring Chronology, the first reference at the end. If you can't trust Woodmorappe who can you trust?
Don't answer that.
The data is briefly described at Graybill - Methuselah Walk - PILO - ITRDB CA535. The file format is also briefly described at Description of Tree Ring Data Files and Procedures: Format for Tree-Ring Data Files.

This message is a reply to:
 Message 9 by Percy, posted 03-22-2009 4:37 PM Percy has replied

Replies to this message:
 Message 18 by Percy, posted 03-22-2009 7:59 PM JonF has replied
 Message 24 by Daniel4140, posted 03-24-2009 1:15 AM JonF has replied

  
JonF
Member (Idle past 191 days)
Posts: 6174
Joined: 06-23-2003


Message 17 of 34 (503844)
03-22-2009 7:59 PM
Reply to: Message 8 by Daniel4140
03-22-2009 4:13 PM


Still no answers
I'm not interested in disucssing statistical analysys until it can be proven that the creationist community has access to the data source on the 14C dates for the Ferguson Chronology, among other things.
Then stop posting your amateurish and unfounded "analyses".
Also, if cannot be established where rings were subjectively added by researchers, then there is no point in talking about statistics.
You're confused on on the burden of proof. If you think "rings were subjectively added by researchers", it's up to you to present evidence for your claim. "0" might well mean "present but less than the increment of measurement".
Real science requires original data.
You got original data. You want something better, put up some money, get a permit, and go core a tree. Gee, wonder why Wody didn't do that?
As it is a huge majority of the "matches" involve rings of "0" width.
Since you are "analysing" by your own undocumented and unverified methods, this claim is meaningless noise. Specify your methodology and your mathematiocal justification for it.
My current hypothesis is that the "0"'s were fraudlently placed
Hypothesize whatever you wish. When you have evidence that supports your hypothesis, present it. Unspecified and (almost certainly) invalid "analyses" aren't evidence.

This message is a reply to:
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Percy
Member
Posts: 22484
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.8


Message 18 of 34 (503845)
03-22-2009 7:59 PM
Reply to: Message 16 by JonF
03-22-2009 7:51 PM


Check out Message 14. It's a reply to me, but I think it was intended for you.
Why does he think a moving average is helpful? It seems like that would remove the detail necessary for finding correlations.
--Percy

This message is a reply to:
 Message 16 by JonF, posted 03-22-2009 7:51 PM JonF has replied

Replies to this message:
 Message 19 by JonF, posted 03-22-2009 8:13 PM Percy has not replied
 Message 20 by lyx2no, posted 03-22-2009 9:21 PM Percy has not replied
 Message 21 by RAZD, posted 03-22-2009 9:26 PM Percy has replied

  
JonF
Member (Idle past 191 days)
Posts: 6174
Joined: 06-23-2003


Message 19 of 34 (503848)
03-22-2009 8:13 PM
Reply to: Message 18 by Percy
03-22-2009 7:59 PM


Check out Message 14. It's a reply to me, but I think it was intended for you.
I think his posts aren't intended for anyone but himself. He's trying to convince himself. He's obviously not putting any effort into convincing anyone else.
ETA: I have no idea why he does any of the calculations he's done.
Edited by JonF, : No reason given.

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lyx2no
Member (Idle past 4739 days)
Posts: 1277
From: A vast, undifferentiated plane.
Joined: 02-28-2008


Message 20 of 34 (503862)
03-22-2009 9:21 PM
Reply to: Message 18 by Percy
03-22-2009 7:59 PM


Stating the Obvious
It seems like that would remove the detail necessary for finding correlations.
Sort of answering your own question, aren't ya'?

Genesis 2
17 But of the ponderosa pine, thou shalt not eat of it; for in the day that thou shinniest thereof thou shalt sorely learn of thy nakedness.
18 And we all live happily ever after.

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RAZD
Member (Idle past 1428 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 21 of 34 (503863)
03-22-2009 9:26 PM
Reply to: Message 18 by Percy
03-22-2009 7:59 PM


Check out the IntCal98 information - they used a moving average (p 3/1043)
quote:
Part of single-year Δ14C (expressed as the per mil (&permil) deviation of tree-ring 34C activity from NBS oxalic acid activity, corrected for isotope fractionation, Stuiver and Polach 1977) is tied to 11-yr-cycle solar modulation of atmospheric 14C production. Pacific Northwest single-year data (when averaged with those of a Kodiak Island tree) yield a three-year moving average for the AD 1897- 1945 interval with 11-yr-cycle Δ14C modulation averaging 2.5‰ (peak to peak) over four cycles (Stuiver and Braziunas 1998). Twenty 14C years appears to be an upper limit for single-yr 14C age change induced by the 11-yr cycle. The standard deviation introduced by 11-yr modulation around the long-term (e.g., decadal average) trend is a much smaller 814C yr (as derived from a 2.5‰ peakto-peak sinusoidal Δ14C cycle).
I would think you would want to use 11 year moving average to reduce the effect of an 11 year cycle, so that each averaged value would be for a whole 11 year segment.
This method does not appear in the IntCal04 article, so I would assume that Daniel4140 is using the older information based on his comment of making a previous model.
He may be confusing methodology for 14C with that for tree ring counting.
Enjoy.
Edited by RAZD, : lastP
Edited by RAZD, : link

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This message is a reply to:
 Message 18 by Percy, posted 03-22-2009 7:59 PM Percy has replied

Replies to this message:
 Message 23 by Percy, posted 03-23-2009 4:36 AM RAZD has seen this message but not replied

  
shalamabobbi
Member (Idle past 2871 days)
Posts: 397
Joined: 01-10-2009


Message 22 of 34 (503864)
03-22-2009 9:27 PM
Reply to: Message 8 by Daniel4140
03-22-2009 4:13 PM


Re: An ignored Request
Given enough white noise, you can find a signal in anything!
Actually S/N ratio is a concept in science that is well understood.
If signal to noise were a problem why are they using decadel samples when they could improve the S/N ratio by using annual samples?
reference: RAZD's 2nd link in post #10

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Percy
Member
Posts: 22484
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.8


Message 23 of 34 (503882)
03-23-2009 4:36 AM
Reply to: Message 21 by RAZD
03-22-2009 9:26 PM


RAZD writes:
He may be confusing methodology for 14C with that for tree ring counting.
Could be. He seems to like playing with numbers willy-nilly, sort of like numerology applied to tree ring widths.
--Percy

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Daniel4140
Member (Idle past 5506 days)
Posts: 61
Joined: 03-05-2009


Message 24 of 34 (504017)
03-24-2009 1:15 AM
Reply to: Message 16 by JonF
03-22-2009 7:51 PM


quote:
, however many of the data sets arise from unpublished research contributed to the International Tree Ring Data Bank
There you have it. It's alleged cold fusion all over again.
The artificial "0"'s in the file are the signal -- put there by the subjective judgment of Ferguson and company.
Edited by Daniel4140, : No reason given.

Creation 4140 B.C. Flood 2484 B.C
Exodus 1632 B.C. Online Chronology book: The Scroll of Biblical Chronology

This message is a reply to:
 Message 16 by JonF, posted 03-22-2009 7:51 PM JonF has replied

Replies to this message:
 Message 25 by JonF, posted 03-24-2009 8:28 AM Daniel4140 has replied
 Message 26 by Percy, posted 03-24-2009 9:11 AM Daniel4140 has not replied
 Message 31 by RAZD, posted 03-24-2009 7:46 PM Daniel4140 has not replied

  
JonF
Member (Idle past 191 days)
Posts: 6174
Joined: 06-23-2003


Message 25 of 34 (504043)
03-24-2009 8:28 AM
Reply to: Message 24 by Daniel4140
03-24-2009 1:15 AM


Got any evidence of that?
What did the researchers say when you contacted tham and asked about them? Oh, you're just going on your made-up fantasy, without evidence and without consulting anyone else
Ohm and the data set ain't ferguson's. You are s-o-o-o-o slow.
Let's see your justification for your climas.

This message is a reply to:
 Message 24 by Daniel4140, posted 03-24-2009 1:15 AM Daniel4140 has replied

Replies to this message:
 Message 27 by Daniel4140, posted 03-24-2009 10:58 AM JonF has replied

  
Percy
Member
Posts: 22484
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.8


Message 26 of 34 (504044)
03-24-2009 9:11 AM
Reply to: Message 24 by Daniel4140
03-24-2009 1:15 AM


Daniel,
It might be hard to tell, but we're actually delighted that you're interested in analyzing the raw data. But it has to be a rational analysis, and you can't keep interjecting unsupported conclusions without losing all pretense of objectivity.
Developing your own analysis techniques from scratch isn't likely to bear fruit, but if you want to continue trying then we'll continue giving you feedback about whether you seem to be doing anything meaningful.
But you might be better off seeking flaws in existing analysis approaches. For instance, you could use the tree ring specialists own analysis software and seek contradictions, such as sequences of known date that correlate with tree ring sequences of other known, but different, dates. Or perhaps you could show that they're too lenient in the degree of correlation they seek.
--Percy

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 Message 24 by Daniel4140, posted 03-24-2009 1:15 AM Daniel4140 has not replied

  
Daniel4140
Member (Idle past 5506 days)
Posts: 61
Joined: 03-05-2009


Message 27 of 34 (504057)
03-24-2009 10:58 AM
Reply to: Message 25 by JonF
03-24-2009 8:28 AM


Jon, you just see what you want to see, and nothing else. Ferguson's been dead a long time. He never published his primary data. The data you see is the evolution of his data put out by his students, who were compelled to publish some of it.
You could have guessed that I would have known that. It's no different than saying Moses wrote the Torah though he had help from his fellow Levites.
Your automatic disrespect of creationists argues loudly for the vile falseness of your own position. Your pickiness on a point not relevant to the proof of your position says your grasping at straws just to win by bullying. No honest person will buy that as an argument.

Creation 4140 B.C. Flood 2484 B.C
Exodus 1632 B.C. Online Chronology book: The Scroll of Biblical Chronology

This message is a reply to:
 Message 25 by JonF, posted 03-24-2009 8:28 AM JonF has replied

Replies to this message:
 Message 28 by JonF, posted 03-24-2009 4:49 PM Daniel4140 has not replied
 Message 29 by NosyNed, posted 03-24-2009 5:01 PM Daniel4140 has not replied
 Message 30 by shalamabobbi, posted 03-24-2009 5:35 PM Daniel4140 has not replied

  
JonF
Member (Idle past 191 days)
Posts: 6174
Joined: 06-23-2003


Message 28 of 34 (504106)
03-24-2009 4:49 PM
Reply to: Message 27 by Daniel4140
03-24-2009 10:58 AM


Actually, I've shown far less automatic disrespect than you. I've been very respectful and polite, especially in the OP of this thread.
You still haven't come up with any evidence for any of your claims.
You still haven't attempted to validate any of your statistics.
And you say I'm grasping at straws?? Well, that's just so ironic all I can do is post a picture of a bunny with a pancake on his head:

This message is a reply to:
 Message 27 by Daniel4140, posted 03-24-2009 10:58 AM Daniel4140 has not replied

  
NosyNed
Member
Posts: 9003
From: Canada
Joined: 04-04-2003


Message 29 of 34 (504108)
03-24-2009 5:01 PM
Reply to: Message 27 by Daniel4140
03-24-2009 10:58 AM


Asking again
I ask again, Daniel, where are the ICR (or other organizations) published studies to show how tree ring dating is wrong?
If you think you can do it why hasn't it been done and done again yet?
Why do creationists avoid that question?

This message is a reply to:
 Message 27 by Daniel4140, posted 03-24-2009 10:58 AM Daniel4140 has not replied

  
shalamabobbi
Member (Idle past 2871 days)
Posts: 397
Joined: 01-10-2009


Message 30 of 34 (504116)
03-24-2009 5:35 PM
Reply to: Message 27 by Daniel4140
03-24-2009 10:58 AM


Daniel4140 writes:
Jon, you just see what you want to see, and nothing else.
..the pot said to the kettle.
I have been using google scholar to pull articles about this subject to inform myself and it seems that zero ring widths are quite common, understood due to periods of severe stress, and result in no problems whatsoever.
There is quite a long history of this science. It began in the present (a century ago) with lots of opportunity to verify the method. I think the first validation came from the study of a stump and telling when the tree was felled which was confirmed by locating the lumberjack involved.
It has grown ever since with multitudes of participants and data on all the continents. There is so much data from the white mountain area alone that they have a difficult time cataloging it all.
By applying the technique to lumber used in construction in ancient archeological sites, floating or relative ages were attached to the various sites. But now the floaters are all part of one long chronology.
The red pill isn't for everyone Daniel, steak tastes good even if it exists only in the mind of the consumer..

This message is a reply to:
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