Clinical Tolerance Limits for Assessing Agreement // Implements clinical tolerance limits (CTL) methodology for assessing agreement between two measurement methods. Estimates the true latent trait using Best Linear Unbiased Predictors (BLUP), models bias and variance components, and calculates overall and conditional agreement probabilities. Provides visualization tools including tolerance limit plots and conditional probability of agreement plots with confidence bands. This package is based on methods described in Taff (2016) doi:10.1177/0962280216666667, Taff (2019) doi:10.1177/0962280219844535, and 'Stata' package Taff (2025) doi:10.1177/1536867X251365501.