[Databionic-ESOM-User] Starting from distance Matrix

[Patrick De M. <pat...@me...>]

Hello,

I want to use the ESOM tools starting from a distance matrix since I question 
whether the tools can handle > 7000 vectors with a dimensionality > 800000. I 
used the Euclidean distance metric to construct that distance matrix but I 
now wonder what the next steps are to create a U-matrix map and if I can run 
everything from batch (another program is dealing with these huge datasets 
and with the visualisation of any result). So, I like also to know whether I 
can "export" the U-map to a PNG or other graphic format.

(I tried with a smaller data set (100 vectors, dimension +/- 50000, but even 
then he sometimes fails due to memory problems: out of memory, and setting 
the memory parameter in the script to more than 3GB, e.g., Xmx4096m resulted 
in an error (of the program?) that he could not handle such sizes ....)

Many thanks in advance and best regards,
Patrick