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by Lars-Ake
22 Feb 2009, 19:10
Forum: About this forum
Topic: Why register at this forum?
Replies: 0
Views: 8403

Why register at this forum?

If you are interested in postings on various topics at this forum it is a good idea to register. When registered: You can subscribe to automatic messages sent to you when there is a new comment on a topic (or in a forum) of your interest. The forum system keeps track on which postings you have alrea...
by Lars-Ake
22 Feb 2009, 13:43
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 29461

Re: Questions raised by the Hollstein data

...With this graph you found hard evidence for Hollstein's 207 year mismatch! The quality of the match is indeed good. Though the look of that match may be because of a mix of wood from different times! Either such a mix might be the cause that made the match at all occur. Or, without the mix the m...
by Lars-Ake
21 Feb 2009, 18:46
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 29461

Re: Questions raised by the Hollstein data

I have now added an extra section "More information" to my Hollstein pages at http://www.cybis.se/forfun/dendro/hollstein . The two first items of that section are already reported within this forum/this topic. Though at the end of that section there are two pictures showing the curve matc...
by Lars-Ake
20 Feb 2009, 00:46
Forum: CDendro General Discussion
Topic: The Development version of CDendro
Replies: 5
Views: 12643

Re: The Development version of CDendro

There is now a new development version of CDendro together with a new version of CooRecorder. Main feature to traverse a crack with CooRecorder is reported in another posting. In CDendro the Correlation coefficient (and TTest-values) can now be shown like this: http://www.cybis.se/forumimages/piledc...
by Lars-Ake
20 Feb 2009, 00:29
Forum: CooRecorder General Discussion
Topic: The development (test) version of CooRecorder
Replies: 5
Views: 11138

Re: The development (test) version of CooRecorder

19 February 2009: CooRecorder: A new tool - CrackMarker - to use when a crack cannot be easily traversed with a double-point. Help on using crack marker points (see that you reload/refresh the page!) CDendro: Mechanisms to make CDendro handle crackmarker points in .pos files. Crossdating quality tes...
by Lars-Ake
16 Feb 2009, 17:35
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 29461

Re: Questions raised by the Hollstein data

....... http://www.jahr1000wen.de/jtw/img/Hol190_174ad.gif shows H's data near the 1000 year minimum. http://www.jahr1000wen.de/jtw/img/Hol194_472ad.gif a similar set some 300 years later. Do you see a chance to generate quantitative correlation data from this with your program? ... For the compari...
by Lars-Ake
14 Feb 2009, 12:59
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 29461

Re: Questions raised by the Hollstein data

Please also note that the uncertain years according to Holstein data detected by Lars-Åke are 207 years before approximately 540 AD (i.e aprox. the years 333-540 AD) which is an other period than Illig's "Phantom time" (7'th to 9'th cent AD). His needs of exactly 297 years after AD 590, a...
by Lars-Ake
13 Feb 2009, 18:46
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 29461

Re: Questions raised by the Hollstein data

...... In fact, Holstein's data include a duplicated section. This can be seen, when two scans of samples from Trier are superimposed [ http://www.jahr1000wen.de/jtw/img/Hol_TrierMosel5.gif]: For comparison, the data from the Amphitheatre were shifted by 305 years against the data from the Roman br...
by Lars-Ake
11 Feb 2009, 21:45
Forum: CDendro General Discussion
Topic: Using CDendro to analyze tree growth with climatic trends
Replies: 2
Views: 11046

Re: Using CDendro to analyze tree growth with climatic trends

I am working on a project that involves comparing white spruce growth with climatic patterns such as temperature and precipiation trends. I'm looking for some advice on how to do this using the CDendro program. I collect three white spruce cores from 43 different sites. I want to create a mean grow...
by Lars-Ake
07 Feb 2009, 00:50
Forum: CooRecorder General Discussion
Topic: The development (test) version of CooRecorder
Replies: 5
Views: 11138

The development (test) version of CooRecorder

There is now a new develpment version of CooRecorder available for testing. The mechanism for "Catching the ring width data underlying a plotted curve" has been somewhat extended. When you have a curve without yearly markers, you can now get vertical help lines drawn across your diagram, l...

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