Patrick - I would love to know the answer to how to combine - but this project has just been born and they haven't looked at enough real-world data to test their assumptions.

Your histogram concept is a good one - and could be made to work even if the differnt ratings are on different scales - just make the scales percentage based.

Thanks

>
>just out of curiosity, how
>do you combine your individual ratings to get a final score ?
>in the past, i've weighted each rating factor and multiplied all
>the rating factors.
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>