R-universe - jmober (Moritz Berger)

TSVC - Tree-Structured Modelling of Varying Coefficients

Fitting tree-structured varying coefficient models (Berger et al. (2019), <doi:10.1007/s11222-018-9804-8>). Simultaneous detection of covariates with varying coefficients and effect modifiers that induce varying coefficients if they are present.

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2.30 score 1 stars 4 scripts 248 downloads

structree - Tree-Structured Clustering

Tree-structured modelling of categorical predictors (Tutz and Berger (2018), <doi:10.1007/s11634-017-0298-6>) or measurement units (Berger and Tutz (2018), <doi:10.1080/10618600.2017.1371030>).

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2.00 score 5 scripts 291 downloads

DIFtree - Item Focussed Trees for the Identification of Items in Differential Item Functioning

Item focussed recursive partitioning for simultaneous selection of items and variables that induce Differential Item Functioning (DIF) in dichotomous or polytomous items.

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1.48 score 1 dependents 6 scripts 359 downloads

ordDisp - Separating Location and Dispersion in Ordinal Regression Models

Estimate location-shift models or rating-scale models accounting for response styles (RSRS) for the regression analysis of ordinal responses.

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1.00 score 4 scripts 437 downloads