Both SparseM and Matrix have facilities for rbind and cbind
that allow you to concatenate pieces of sparse matrices together.
On Nov 23, 2008, at 2:19 PM, Atul Kulkarni wrote:
Hi All,
I am dealing with a large data set which translates in to a sparse
matrix, I
want to load this data that is spread in approximately 17000+ files
each
defining a row and each file has variable number of records that
come with
its column number and the value that they store.
I wish to load this data in memory from these files one by one. Is
there
anyway I can do this in R, before I start processing? I am sure this
is not
the first time R or the community is confronted with this kind of a
problem
but I could not find the documentation for loading data in to sparse
matrix
I found quite a few packages for sparse matrix but they all were
concentrating on how to do various operations with the matrix once the
matrix is loaded. I need to first load the data in the system before
I can
think about analysing.
Regards,
Atul.
Graduate Student,
Department of Computer Science,
University of Minnesota Duluth,
Duluth, MN, 55812.
--------
www.d.umn.edu/~kulka053
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