The percentile function calculates each student's relative standing in the group, expressed as a percentile rank (1-100). This function is applicable only to binary response data.
The percentile rank indicates the percentage of scores in the distribution that fall below a given score. For example, a percentile rank of 75 means the student performed better than 75% of the group.
percentile(U, na = NULL, Z = NULL, w = NULL)# S3 method for default
percentile(U, na = NULL, Z = NULL, w = NULL)
# S3 method for binary
percentile(U, na = NULL, Z = NULL, w = NULL)
A numeric vector of percentile ranks (1-100) for each student, where:
100: Highest performing student(s)
50: Median performance
1: Lowest performing student(s)
Either an object of class "exametrika" or raw data. When raw data is given,
it is converted to the exametrika class with the dataFormat function.
Values to be treated as missing values.
Missing indicator matrix of type matrix or data.frame. Values of 1 indicate observed responses, while 0 indicates missing data.
Item weight vector specifying the relative importance of each item.
# using sample dataset
percentile(J5S10)
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