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unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["caracas","r-package","structural-equation-modeling","symbolic-calculations"],"created_at":"2025-10-22T03:59:15.847Z","updated_at":"2026-03-07T05:32:14.407Z","avatar_url":"https://github.com/mikewlcheung.png","language":"R","funding_links":[],"categories":[],"sub_categories":[],"readme":"[![R build status](https://github.com/mikewlcheung/symsem/workflows/R-CMD-check/badge.svg)](https://github.com/mikewlcheung/symsem/actions)\n[![cran version](http://www.r-pkg.org/badges/version/symSEM)](https://cran.r-project.org/package=symSEM)\n[![Monthly Downloads](http://cranlogs.r-pkg.org/badges/symSEM)](https://cranlogs.r-pkg.org/badges/symSEM)\n[![Total Downloads](http://cranlogs.r-pkg.org/badges/grand-total/symSEM)](https://cranlogs.r-pkg.org/badges/grand-total/symSEM)\n[![Rdoc](http://www.rdocumentation.org/badges/version/symSEM)](https://www.rdocumentation.org/packages/symSEM)\n\n# symSEM\nSymbolic Computation for Structural Equation Models\n\nThe symSEM package uses the [caracas](https://cran.r-project.org/package=caracas) package, which depends on the [SymPy](https://www.sympy.org/) library, for the symbolic computations.\n\nThe stable version can be installed from CRAN by:\n```\ninstall.packages(\"symSEM\")\n```\n\nThe developmental version can be installed from GitHub by:\n```\n## Install remotes package if it has not been installed yet\n# install.packages(\"remotes\")\n\nremotes::install_github(\"mikewlcheung/symsem\")\n```\n\n\n# Example\n\n## Compute a symbolic model-implied covariance and correlation matrices\n\n```\nlibrary(symSEM)\n\n## A regression model\nmodel \u003c- \"y ~ b1*x1 + b2*x2\n          ## Covariance between x1 and x2\n          x1 ~~ x2\n          ## Means\n          y ~ b0*1\n          x1 ~ m1*1\n          x2 ~ m2*1\"\n\n## Convert it into a RAM speculation\nRAM \u003c- metaSEM::lavaan2RAM(model)\n\n## Implied covariance matrix and mean structure\nimpliedS(RAM, corr=FALSE)\n\n## Implied correlation matrix\nimpliedS(RAM, corr=TRUE)\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmikewlcheung%2Fsymsem","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmikewlcheung%2Fsymsem","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmikewlcheung%2Fsymsem/lists"}