readClfEnv

<code>character(1)</code> providing a path to the CLF file to be
    input.

file

<code>logical(1)</code> indicating whether the entire file should
    be parsed (<code>TRUE</code>) or only the file header information describing
    the chips to which the file is releavant.

readBody


 This function parses a CLF file using the Affymetrix Fusion SDK. CLF
 (chip layout) files contain information associating probe ids with chip
 x- and y- coordinates.


Package for parsing Affymetrix files (CDF, CEL, CHP, BPMAP, BAR).  It provides methods for fast and memory efficient parsing of Affymetrix files using the Affymetrix' Fusion SDK.  Both ASCII- and binary-based files are supported.  Currently, there are methods for reading chip definition file (CDF) and a cell intensity file (CEL).  These files can be read either in full or in part.  For example, probe signals from a few probesets can be extracted very quickly from a set of CEL files into a convenient list structure.

Kasper Daniel Hansen

affxparser

Affymetrix File Parsing SDK

readClfEnv function

This function parses a CLF file using the Affymetrix Fusion SDK. CLF
 (chip layout) files contain information associating probe ids with chip
 x- and y- coordinates.

Parsing a CLF file using Affymetrix Fusion SDK

A list with information about the CLF file. The list
    contains elements described in the CLF file format document
    referenced below.

header

A length-two integer vector of chip x- and y-coordinates.

dims

An integer vector of length <code>prod(dims)</code> containing
    probe identifiers.

An integer vector of length <code>prod(dims)</code> containing
    x-coordinates corresponding to the entries in <code>id</code>.

An integer vector of length <code>prod(dims)</code> containing
    y-coordinates corresponding to the entries in <code>id</code>.

readClfEnv: Parsing a CLF file using Affymetrix Fusion SDK

Description

Usage

Arguments

Value

See Also