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.

Rayner et al. BMC Bioinformatics 2006 7:489   doi:10.1186/1471-2105-7-489

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