The woylier package implements tour interpolation paths between frames using Givens rotations. This provides an alternative to the geodesic interpolation between planes currently available in the tourr package. Tours are used to visualise high-dimensional data and models, to detect clustering, anomalies and non-linear relationships. Frame-to-frame interpolation can be useful for projection pursuit guided tours when the index is not rotationally invariant. It also provides a way to specifically reach a given target frame. We demonstrate the method for exploring non-linear relationships between currency cross-rates.

翻译：woylier包通过Givens旋转实现了数据帧之间的巡回插值路径。这为目前tourr包中基于平面间测地线插值的方法提供了替代方案。巡回用于可视化高维数据和模型，以检测聚类、异常值和非线性关系。当优化指标不具备旋转不变性时，帧间插值对投影追踪引导巡回尤为有用。该方法还提供了一种精确到达指定目标帧的途径。我们通过探索货币交叉汇率之间的非线性关系，展示了该方法的实际应用。