makecdfenv (version 1.48.0)

getInfoInFile: get information from Affymetrix data files

Description

Get specific information stored in Affymetrix data files (CEL or CDF).

Usage

getInfoInFile(filename, type, unit, property, compress = NULL)

Arguments

filename

a file name

type

"CEL" or "CDF" are the only known types.

unit

the 'unit' to find the information

property

the 'property' of interest

compress

a boolean

Value

a character with the value of the 'property'.

Details

The data files seem to have a structure of 'units'. A 'unit' start with something between square brackets (ex: "[UNIT1]"). The parameter unit let one specify in which unit the information of interest is located. The 'properties' are constituted of an identifier, the sign '=' and the value for the property (ex: "numCells=12000").

If you are planning to use this function, I assume you know the what is in CEL and CDF files in details and that you know what are doing.

See Also

read.celfile, read.cdffile, whatcdf