lexact: Deprecated. Use lfast() instead

In LikertMakeR: Synthesise and Correlate Likert Scale and Rating-Scale Data Based on Summary Statistics

Deprecated. Use lfast() instead

Description

lexact is DEPRECATED. Replaced in LikertMakeR Version 0.4.0 by new version of lfast.

lexact remains as a legacy for earlier package users. It is now just a wrapper for lfast

Previously, lexact used a Differential Evolution (DE) algorithm to find an optimum solution with desired mean and standard deviation, but we found that the updated lfast function is much faster and just as accurate.

Also the package is much less bulky.

Usage

lexact(n, mean, sd, lowerbound, upperbound, items = 1)

Arguments

n	(positive, int) number of observations to generate
mean	(real) target mean
sd	(real) target standard deviation
lowerbound	(positive, int) lower bound
upperbound	(positive, int) upper bound
items	(positive, int) number of items in the rating scale.

Value

a vector of simulated data approximating user-specified conditions.

Examples

x <- lexact(
  n = 256,
  mean = 4.0,
  sd = 1.0,
  lowerbound = 1,
  upperbound = 7,
  items = 6
)

x <- lexact(256, 2, 1.8, 0, 10)

LikertMakeR documentation built on March 23, 2026, 9:07 a.m.