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arXiv · 2406.15933

On the use of splines for representing ordered factors

Adelchi Azzalini
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Abstract

In the context of regression-type statistical models, the inclusion of some ordered factors among the explanatory variables requires the conversion of qualitative levels to numeric components of the linear predictor. The present note represent a follow-up of a methodology proposed by Azzalini (2023} for constructing numeric scores assigned to the factors levels. The aim of the present supplement it to allow additional flexibility of the mapping from ordered levels and numeric scores.

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Adelchi Azzalini. 2024-06-22. On the use of splines for representing ordered factors. https://arxiv.org/abs/2406.15933

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