diff options
Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/models/database-functions.txt | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/docs/ref/models/database-functions.txt b/docs/ref/models/database-functions.txt index 71c98fd73e..f33e4f5370 100644 --- a/docs/ref/models/database-functions.txt +++ b/docs/ref/models/database-functions.txt @@ -1758,16 +1758,16 @@ more frequently. .. class:: PercentRank(*expressions, **extra) -Computes the percentile rank of the rows in the frame clause. This -computation is equivalent to evaluating:: +Computes the relative rank of the rows in the frame clause. This computation is +equivalent to evaluating:: (rank - 1) / (total rows - 1) -The following table explains the calculation for the percentile rank of a row: +The following table explains the calculation for the relative rank of a row: -===== ===== ==== ============ ============ -Row # Value Rank Calculation Percent Rank -===== ===== ==== ============ ============ +===== ===== ==== ============ ============= +Row # Value Rank Calculation Relative Rank +===== ===== ==== ============ ============= 1 15 1 (1-1)/(7-1) 0.0000 2 20 2 (2-1)/(7-1) 0.1666 3 20 2 (2-1)/(7-1) 0.1666 @@ -1775,7 +1775,7 @@ Row # Value Rank Calculation Percent Rank 5 30 5 (5-1)/(7-1) 0.6666 6 30 5 (5-1)/(7-1) 0.6666 7 40 7 (7-1)/(7-1) 1.0000 -===== ===== ==== ============ ============ +===== ===== ==== ============ ============= ``Rank`` -------- |