hash_big_matrix-class | R Documentation |
hash_big_matrix
class is a modified class from bigmemory::big.matrix-class()
. Its purpose is to
help users operate big matrices within hard disk in a reusable way, so that the large matrices do not consume
too much memory, and the matrices can be reused for the next time.
Comparing with bigmemory::big.matrix-class()
, the major enhancement of hash_big_matrix
class
is that the backing files are, by default, stored in a permanent place, with the md5 of the object as the file
name. With this explicit name, hash_big_matrix
objects can be easily reloaded into workspace every time.
as_hash_big_matrix(x, backingpath = "bp", silence = TRUE, ...) attach_hash_big_matrix(x, backingpath = "bp")
x |
A matrix, vector, or data.frame for |
backingpath, ... |
Passed to |
silence |
Suppress messages? |
as_hash_big_matrix()
: Create a hash_big_matrix
object from a matrix.
attach_hash_big_matrix()
: Attach a hash_big_matrix
object from the backing file to the workspace.
md5
The md5 value of the matrix.
address
Inherited from big.matrix
.
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