.initBigMatrix

NULL, matrix, or big.matrix. Optional data or
  big.matrix for new BigMatrix

character, class name.  BigMatrix or
  BigMatrixFactor currently.

class

character, full path to the file that
  will contain the data matrix

backingfile

integer, number of rows in the matrix we are
  about to create

nrow

integer, number of columns in the matrix we
  are about to create

ncol

list, list(rownames,colnames), as for a
  typical matrix

dimnames

character, can be double, integer, or char

type

other args to pass to "new" method of
  generator object, like levels

internal

This package defines a "BigMatrix" ReferenceClass which adds
safety and convenience features to the filebacked.big.matrix class from the
bigmemory package. BigMatrix protects against segfaults by monitoring and
gracefully restoring the connection to on-disk data and it also protects
against accidental data modification with a filesystem-based permissions
system. We provide utilities for using BigMatrix-derived classes as
assayData matrices within the Biobase package's eSet family of classes.
BigMatrix provides some optimizations related to attaching to, and indexing
into, file-backed matrices with dimnames. Additionally, the package
provides a "BigMatrixFactor" class, a file-backed matrix with factor
properties.

.initBigMatrix: Create a new BigMatrix-derived class

Description

Usage

Arguments

Value