74 total time points 

The arrays are printed from ests (accession id for NCBI in the first column).  
The est seqeunces that map to each of the expression files is ests.fa.  
Mapped to the 5.1 annotation.  
For this data, there is an Mvalue, which is the log2 of the ratio of the expression value (ie. log2(channel1/channel2)).  
The Avalue is the log2 of the average expression values.  
So think of the Mvalues as ratios and the Avalues as average expression.  
Present absent calls, based on bonferroni corrected p-values and fisher's method to combine p-values, 
so  you will see a P/M/A column representing present, absent, or marginal.  
The associated p-values are in the next column. 
Last is the flagged column.  This means the spot of spots were flagged for some reason in the expreiment, 
so it is a bad spot.  
