Comments (2)
Adding @qclayssen as he will evaluate the matrix
from simka.
Dear Hans,
Thank you for pointing out this behavior.
Since the last release, SimkaMin is supposed to output fully symmetrical matrices, with the same values in the upper and lower triangular parts of the matrix. So this is clearly a bug.
After investigations, it happens when more than 100 datasets are compared. In fact, the distances are computed by "blocks" of 100 datasets, so this is the merging of the different parts of the full matrix that is at issue. During the merging, blocks of 100x100 zeros are put in the lower triangular part (instead of copying the values from the corresponding upper triangular part).
We will try to fix this as soon as possible.
But, in the meantime, you can safely use the values of the upper triangular part of the matrix which are correct.
Please let me know, if this is not clear enough.
Best,
Claire
from simka.
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