perc_rank: Percentile Ranks

In DavideMassidda/testing: Psychometric Testing

Percentile Ranks

Description

Calculate the percentile rank corresponding to a breakpoint.

Usage

perc_rank(x, breaks, fun = "<=", perc = TRUE, digits = 1,
    out.names = as.character(breaks))

Arguments

x	Numerical vector of observed data.
breaks	Cut-off values to use as breakpoints.
fun	Comparison function used to count the data.
perc	Logical. Convert the result in percentages.
digits	Number of decimals for output.
out.names	Names for the elements in the output vector (use NULL to exclude names).

Details

For each breakpoint, if fun = "<=", the function returns the percentage of data less than or equal to the break value. Otherwise, if fun = ">=", the function returns the percentage of data greater than or equal to the break value.

Examples

data("drive")
score <- rowSums(drive[,5:10])
perc_rank(score, seq(5,25,by=5))

DavideMassidda/testing documentation built on Oct. 12, 2023, 4:32 p.m.