Bioconductor(using MAS5)File Format

A Bioconductor (MAS5) expression file is a tab-delimited text file that contains Affymetric Gene chip ID and several columns of expression datum. The header line contains all CEL file names you use in the Bioconductor calculation.
A sample expression file is displayed as following.
Sample1Sample2Sample3
gene1 0.3 0.02 0.12

A Bioconductor (MAS5) call file is a tab-delimited text file that contains Affymetric Gene chip ID and several columns of present/absent detection for corresponding expression file.
A sample call file is displayed as following.
Sample1Sample2Sample3
gene1 p p a