Parameters | Utilities | Rank Method

Rank Method
Select the ranking method to be used. Leave this field empty for conventional ranking (from 1 to number of observations). The following table describes each of the options:
 Option Definition FRACTION GROUPS Assigns group values ranging from 0 to number-of-groups minus 1. Common specifications are GROUPS=100 for percentiles, GROUPS=10 for deciles, and GROUPS=4 for quartiles. For example, GROUPS=4 partitions the original values into four groups, with the smallest values receiving, by default, a quartile value of 0 and the largest values receiving a quartile value of 3. Note: The number of groups is specified in the Number of Groups for Rank Method GROUPS option. NORMAL=BLOM Computes normal scores from the ranks using the Blom equation. NORMAL=TUKEY Computes normal scores from the ranks using the Tukey equation. NORMAL=VW Computes normal scores from the ranks using the van der Waerden equation. NPLUS1 Computes fractional ranks by dividing each rank by the denominator n+1, where n is the number of observations that have nonmissing values of the ranking variable. PERCENT Divides each rank by the number of observations (n) that have nonmissing values of the variable and multiplies the result by 100 to get a percentage. n is the number of observations that have nonmissing values of the ranking variable. SAVAGE Computes Savage (or exponential) scores from the ranks.
To Select a Ranking Method: Choose one of the options from the drop-down list. 