R-scripts and dataset for the IRTree based fuzzy rating scale (fIRTree). This is new procedure to derive fuzzy numbers from discrete crisp rating data. It uses Item Response Theory-based tree (IRTree) models as a psychometric model for raters' response process.

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eusflat21: It contains scripts and data used for the EUSFLAT21 paper contribution https://arxiv.org/abs/2102.02025

paper: It containts scripts and data related to the research paper https://arxiv.org/abs/2102.04273 (published version: https://www.sciencedirect.com/science/article/pii/S0165011422000215)