ridittools-package: Useful Functions for Ridit Analysis

In ridittools: Useful Functions for Ridit Analysis

Description

Functions to compute ridit scores of vectors, compute mean ridits and their standard errors for vectors compared to a reference vector, as described in Fleiss (1981, ISBN:0-471-06428-9), and compute means/SEs for multiple groups in matrices. Data can be either counts or proportions. Emphasis is on ridit analysis of ordered categorical data such as Likert items and pain-rating scales.

Details

The DESCRIPTION file: This package was not yet installed at build time.

Index: This package was not yet installed at build time.

Author(s)

Eric Bohlman

Maintainer: Eric Bohlman <[e-mail]>

References

Fleiss, Joseph L., (1981), Statistical Methods for Rates and Proportions. New York: John Wiley & Sons.

Examples

ref <- acc[ , 1]
toridit(ref)
g <- acc[ , 2]
meanridit(g, ref)
seridit(g, ref)
meanridits(flu.age, 2, "H3")
meanridits(flu.age, 2) # Uses group totals as reference
seridits(handgun, 2, 1)

ridittools documentation built on May 1, 2019, 6:30 p.m.