This matrix shows how your collection members match towards the members of a synchronized target collection containing typically several reference curves.
The match is done either to check the "current offset" (current dating) or to find ”the best matching offsets".
The result is a matrix with your reference curves on the rows and your samples in the columns.
This tool is particularly useful when you have many samples of unknown origin, when wood has been imported from a wide geographical area.
The matrix can then be used with a high number of columns (undated samples) combined with sorting the best matching (chocolate colored) samples towards the left part of the column
to quickly find easy crossdatings.
The matrix can also be used to document the sample matchings for a single site.
Below each column in the matrix, you will also find a small table with one or more rows showing the "most popular" dating years and their crossdating quality (T-values), for example
Count MaxT MeanT Year
2 4.6 3.7 1980
4 9.0 6.5 1978T
Meaning that four of our reference samples had their best crossdating towards this sample at the same endyear 1978 with a mean T-value of 6.5 and a maximum of 9.0
This type of small table has also been added to the "With condensed report" of the "(Test towards)..undated ref." command.
Count MaxT MeanT Year
2 4.0 4.0 1019
2 4.1 3.5 1740
6 4.5 3.6 1990
2 5.1 4.9 1843
2 9.9 9.1 1821
Earlier versions of CDendro only had the year and the count column. Now the MeanT and MaxT reveals that the correct dating is at 1821 though it has only a count of 2.
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