databel-class: DatABEL class

In DatABEL: File-Based Access to Large Matrices Stored on HDD in Binary Format

Description

DatABEL stores matrix-shape data in such a way that it can be retrieved fast.

Usage

## S4 method for signature 'databel'
show(object)

## S4 method for signature 'databel'
dim(x)

## S4 method for signature 'databel'
length(x)

## S4 method for signature 'databel'
dimnames(x)

## S4 replacement method for signature 'databel'
dimnames(x) <- value

## S4 method for signature 'databel'
x[i, j, drop]

## S4 replacement method for signature 'databel'
x[i, j] <- value

get_dimnames(object)

set_dimnames(x) <- value

backingfilename(object)

cachesizeMb(object)

cachesizeMb(x) <- value

save_as(x, rows, cols, file, cachesizeMb = 64, readonly = TRUE)

connect(object, readonly = TRUE)

disconnect(object)

setReadOnly(x) <- value

Arguments

object	A DatABEL object
x	A DatABEL object
value	Values to be replaced/inserted
i	Row index
j	Column index
drop	Boolean (FALSE by default); UNUSED
rows	Index for the rows
cols	Index for the columns
file	Filename to save to
cachesizeMb	Amount (in MB) of RAM to use for caching DatABEL data.
readonly	Boolean that specifies whether the file is to be used in read-only mode or not

Slots

usedRowIndex

("integer")

usedColIndex

("integer")

uninames

("list")

backingfilename

Name of the (stem of the) file that contains the data stored in DatABEL format ("character")

cachesizeMb

Amount (in MB) of RAM to use for caching DatABEL data. ("integer")

data

("externalptr")

Note

Will extend description here

Author(s)

Yurii Aulchenko

DatABEL documentation built on May 30, 2017, 3:23 a.m.