R-universe - nicoesve (Nicolas Escobar)

riemtan - Riemannian Metrics for Symmetric Positive Definite Matrices

Implements various Riemannian metrics for symmetric positive definite matrices, including AIRM (Affine Invariant Riemannian Metric, <doi:10.1007/s11263-005-3222-z>), Log-Euclidean (<doi:10.1002/mrm.20965>), Euclidean, Log-Cholesky (<doi:10.1137/18M1221084>), and Bures-Wasserstein metrics (<doi:10.1016/j.exmath.2018.01.002>). Provides functions for computing logarithmic and exponential maps, vectorization, and statistical operations on the manifold of positive definite matrices.

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cpp

5.14 score 13 scripts 293 downloads

latexSymb - R Functions for Readable LaTeX Mathematical Expressions

Build complex 'LaTeX' mathematical expressions using intuitive 'R' functions. Replace error-prone 'LaTeX' syntax with readable, composable functions that make mathematical typesetting straightforward and maintainable.

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4.08 score 1 stars 12 scripts 265 downloads