Encoding: UTF-8 Package: RSA Type: Package Title: Response Surface Analysis Version: 0.10.8 Date: 2025-09-26 Authors@R: c( person(c("Felix"), "Schönbrodt", email = "felix@nicebread.de", role = c("cre", "aut")), person("Sarah", "Humberg", role = c("aut")) ) Maintainer: Felix Schönbrodt Description: Advanced response surface analysis. The main function RSA computes and compares several nested polynomial regression models (full second- or third-order polynomial, shifted and rotated squared difference model, rising ridge surfaces, basic squared difference model, asymmetric or level-dependent congruence effect models). The package provides plotting functions for 3d wireframe surfaces, interactive 3d plots, and contour plots. Calculates many surface parameters (a1 to a5, principal axes, stationary point, eigenvalues) and provides standard, robust, or bootstrapped standard errors and confidence intervals for them. Suggests: fields, rgl, qgraph, tcltk, tkrplot, testthat, covr Depends: R (>= 2.15.0), lavaan (>= 0.5.20), ggplot2, lattice Imports: plyr, RColorBrewer, aplpack, methods License: GPL (>= 2) RoxygenNote: 7.3.2 Repository: https://nicebread.r-universe.dev Date/Publication: 2025-09-26 13:26:26 UTC RemoteUrl: https://github.com/nicebread/rsa RemoteRef: HEAD RemoteSha: e81cb9aa0e41c853f5d9141905612f710c7e04f7 NeedsCompilation: no Packaged: 2026-06-20 06:44:47 UTC; root Author: Felix Schönbrodt [cre, aut], Sarah Humberg [aut]