Skip to end of banner
Go to start of banner

Results - Colon cancer

Skip to end of metadata
Go to start of metadata

You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 2 Next »

This data set fails to complete, for both the Sage coexpression code and the UCLA-WGCNA code.  In the latter case the error is:

"Error in matrix(0, nBlockGenes, nBlockGenes) :   too many elements specified"

According to

http://stat.ethz.ch/R-manual/R-devel/library/base/html/Memory-limits.html

"On all builds of R, the maximum length (number of elements) of a vector is 2^31 - 1 ~ 2*10^9, as lengths are stored as signed integers.".

If an algorithm requires a matrix of size #probes x #probes (e.g. a correlation or TOM 'distance matrix' for clustering), then # probes <46340.

The code does run to completion for the UCLA-WGCNA code when using a preprocessing option to break up the genes into 'blocks' using K-means clustering.  Requesting a block size of 10,000 resulted in 6 blocks and 2h:47m of run time.

  • No labels