Progressive Rock Top Albums / 41 - 1 - 2018 - all countries

Based on members ratings & PA algorithm

Here is some details about how we calculate the average rating of an album and the rank of an album.

Average rating: The classic calculation of the average but more weight is affected to the rating of progarchives.com collaborators and to rating with reviews.
- Rating only: Weight = 1
- Review by members : Weight = 10
- Review by PA Collaborators : Weight = 20
Rank of an album: We use a calculation that compare an album average rating and number of ratings over all others albums in the query using this theory (http://en.wikipedia.org/wiki/Weighted_average)
By default, only albums with the average ratings above the average ratings of the requested query are displayed in theses lists, you can control this value in the parameters

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Rank	Cover	Ratings	Title Artist	Genre (Record Type)	BUY
1		4.13 \| 176 ratings QWR = 4.0896	Blurring the Lines ... A Democracy Manifest Ovrfwrd	Heavy Prog Studio, 2018	Shop
2		3.94 \| 172 ratings QWR = 3.9243	Tribus The Windmill	Heavy Prog Studio, 2018	Shop
3		3.91 \| 116 ratings QWR = 3.8900	Zea Mice Mother Turtle	Heavy Prog Studio, 2018	Shop
4		3.90 \| 29 ratings QWR = 3.8645	Night Shadow Daniel Eliseev Project (D.E.P.)	Heavy Prog Studio, 2018	Shop
5		3.88 \| 45 ratings QWR = 3.8557	Perfectly Flawed Pinn Dropp	Heavy Prog Studio, 2018	Shop