cran-comments.md

In friendly/matlib: Matrix Functions for Teaching and Learning Linear Algebra and Multivariate Statistics

Test environments

• local Windows 10 install, 4.4.1 (2024-06-14 ucrt)
• travis.ci on github
• win-builder R Under development (unstable) (2024-09-25 r87194 ucrt)

Comments

This is a major update, adding a system for constructing and rendering matrix expressions, operations and equations in LaTeX

R CMD check results

There were no ERRORs or WARNINGs or NOTEs.

matlib 1.0.0

• added latexMatrix() to create a symbolic matrix
• latexMatrix() made more general to handle much wider variety of cases, with LaTeX output [JF]
• this is fleshed out with an Eqn() wrapper to work with other LaTeX-generating code in the package [PC]
• added a vignette, inv-3d illustrating linear transformations and matrix inverse in 3D using rgl
• latexMatrix() gets operators for matrix arithmetic (+,-, %*%) and operators (t())
• added vignette, latex-equations.Rmd illustrating the variety of functions in the package for constructing matrix equations in LaTeX
• added functions matmult(), matsum(), matpower() similar to the operators, but providing simplify = TRUE, as.numeric = TRUE
• Eqn() gains a preview argument, rendering a LaTeX matrix expression in a Viewer pane.
• latexMatrix() now allows row/column names to be displayed with a matrix.

Reverse dependencies

devtools::revdep() [1] "biplotbootGUI" "DIDmultiplegtDYN" "dymo" "hyperoverlap" [5] "IOLS" "panelSUR" "smallstuff" "VIRF"

revdepcheck results

We checked 8 reverse dependencies, comparing R CMD check results across CRAN and dev versions of this package.

• We saw 0 new problems
• We failed to check 0 packages

friendly/matlib documentation built on June 12, 2025, 4:15 p.m.