A simple spreadsheet-based, MIAME-supportive format for microarray data: MAGE-TAB

BMC Bioinformatics

Table 10 An example of a data matrix.

ArrayData REF	Data1.cel	Data1.cel	Data2.cel	Data2.cel	Data3.cel	Data3.cel
Reporter REF	signal	p-value	signal	p-value	signal	p-value
Gene 1	x11	p11	x21	p21	x31	p31
Gene 2	x12	p12	x22	p22	x32	p32
Gene 3	x13	p13	x23	p23	x33	p33
...	...	...	...	...	...	...
Gene n	x1n	p1n	x2n	p2n	x3n	p3n

The first row gives references to objects in an SDRF file, for instance to ArrayData URIs in the SDRF in Table 1. The second row specifies the names of the quantitation types that are represented in each column. The first column gives the names of the biological objects these 'expression' measurements relate to, for instance the IDs of the reporters or composite elements in the ADF file or files describing the design of array(s) on which these measurements have been performed. Alternatively, this column may contain identifiers from public sequence databases, or chromosome coordinates from a specified genome build.

ISSN: 1471-2105