[ic] Side-by-side product comparison

[Sergei Voyakin]

Wanted to get an idea on how to side by side comparison of product features 
(in this case they are actually laboratory characteristics). The data will 
be stored in a table with 3 fields (sample_id, characteristic, result) and 
users will be able to check up to 5 different samples and after clicking 
compare button should be directed to a page with up to 6 columns listing 
each characteristic in first and then up to 5 samples. If all samples have 
the same characteristic, this is easy. However, they all can have up to 300 
diff characteristics, some having 40, some 60, some 20, etc. I only want to 
show the interlapping characteristics. So...can anyone give me some pseudo 
code on how this can be done? Or if you have an example? Any help would be 
greatly appreciated.

Thanks

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