splx_to_itvl: Convert from simplex to interval bounds

In intervalpsych: Analyzing Interval Data in Psychometrics

Convert from simplex to interval bounds

Description

Convert from simplex/compostional format to interval bounds format. See also itvl_to_splx() for the inverse transformation.

Usage

splx_to_itvl(simplex, min = NULL, max = NULL)

Arguments

simplex	A numeric vector that is a 2-simplex (3 elements that sum to 1) or a data frame where each of the rows is a 2-simplex.
min	Minimum of the original response scale.
max	Maximum of the original response scale.

Value

A numeric vector with 2 elements representing the lower and upper bounds of the interval response, or a data frame where each of the rows contains such a vector.

See Also

itvl_to_splx()

Examples

responses <- data.frame(rbind(c(.1,.5,.4), c(.3,.4,.3)))
splx_to_itvl(responses, min = 0, max = 1)

intervalpsych documentation built on Aug. 8, 2025, 7:24 p.m.