On Thu, 2013-05-09 at 14:50 +, SILVIA CALVO ARANDA wrote:
Dear all
I'm using betadisper () to evaluate if geographical and historical
heterogeneity differ statistically between two archipelagos. I have
not problems in obtaining the results for the geographical hypothesis
(computing the Euclidean distance between UTM centroids of each
island), but for the historical hypothesis the following message
appears:
Error en vectors[, want, drop = FALSE] %*% diag(sqrt(abs(eig))) :
argumentos no compatibles
Assuming I translate that correctly, it means `vectors[, want, drop =
FALSE]` and `diag(sqrt(abs(eig)))` have dimensions that do not match ofr
the requirements of the matrix multiplication operation.
Can you send me the data and code you are using - **off list** - and
I'll take a look and see what is going wrong?
G
I calculate the historical triangular matrix computing the Euclidean
distance between the oldest geological age of each island (all of them
are from volcanic origin). I've also tried calculating just the
difference in mya between all pairwise comparisons of islands, which
gives basically the same results (but with different scaling).
Can anybody help me with this problem?
Thank you in advance
Silvia
[[alternative HTML version deleted]]
___
R-sig-ecology mailing list
R-sig-ecology@r-project.org
https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
--
%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%
Dr. Gavin Simpson [t] +44 (0)20 7679 0522
ECRC, UCL Geography, [f] +44 (0)20 7679 0565
Pearson Building, [e] gavin.simpsonATNOSPAMucl.ac.uk
Gower Street, London [w] http://www.ucl.ac.uk/~ucfagls/
UK. WC1E 6BT. [w] http://www.freshwaters.org.uk
%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%
___
R-sig-ecology mailing list
R-sig-ecology@r-project.org
https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
