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    },
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      "page": "base_stagg",
      "title": "Sample data for staggered difference in difference",
      "topics": [
        "base_stagg"
      ]
    },
    {
      "page": "BIC.fixest",
      "title": "Bayesian information criterion",
      "topics": [
        "BIC.fixest"
      ]
    },
    {
      "page": "bin",
      "title": "Bins the values of a variable (typically a factor)",
      "topics": [
        "bin"
      ]
    },
    {
      "page": "bread.fixest",
      "title": "Extracts the bread matrix from fixest objects",
      "topics": [
        "bread.fixest"
      ]
    },
    {
      "page": "check_conv_feols",
      "title": "Check the fixed-effects convergence of a 'feols' estimation",
      "topics": [
        "check_conv_feols",
        "summary.fixest_check_conv"
      ]
    },
    {
      "page": "coef.fixest",
      "title": "Extracts the coefficients from a 'fixest' estimation",
      "topics": [
        "coef.fixest",
        "coefficients.fixest"
      ]
    },
    {
      "page": "coef.fixest_multi",
      "title": "Extracts the coefficients of fixest_multi objects",
      "topics": [
        "coef.fixest_multi",
        "coefficients.fixest_multi"
      ]
    },
    {
      "page": "coefplot",
      "title": "Plots confidence intervals and point estimates",
      "topics": [
        "coefplot",
        "iplot"
      ]
    },
    {
      "page": "coeftable",
      "title": "Extracts the coefficients table from an estimation",
      "topics": [
        "coeftable",
        "pvalue",
        "se",
        "tstat"
      ]
    },
    {
      "page": "coeftable.default",
      "title": "Extracts the coefficients table from an estimation",
      "topics": [
        "coeftable.default",
        "pvalue.default",
        "se.default",
        "se.fixest_vcov",
        "se.matrix",
        "tstat.default"
      ]
    },
    {
      "page": "coeftable.fixest",
      "title": "Obtain various statistics from an estimation",
      "topics": [
        "coeftable.fixest",
        "pvalue.fixest",
        "se.fixest",
        "tstat.fixest"
      ]
    },
    {
      "page": "coeftable.fixest_multi",
      "title": "Extracts the coefficients tables from 'fixest_multi' estimations",
      "topics": [
        "coeftable.fixest_multi",
        "pvalue.fixest_multi",
        "se.fixest_multi",
        "tstat.fixest_multi"
      ]
    },
    {
      "page": "collinearity",
      "title": "Collinearity diagnostics for 'fixest' objects",
      "topics": [
        "collinearity"
      ]
    },
    {
      "page": "confint.fixest",
      "title": "Confidence interval for parameters estimated with 'fixest'",
      "topics": [
        "confint.fixest"
      ]
    },
    {
      "page": "confint.fixest_multi",
      "title": "Confidence intervals for 'fixest_multi' objects",
      "topics": [
        "confint.fixest_multi"
      ]
    },
    {
      "page": "degrees_freedom",
      "title": "Gets the degrees of freedom of a 'fixest' estimation",
      "topics": [
        "degrees_freedom",
        "degrees_freedom_iid"
      ]
    },
    {
      "page": "demean",
      "title": "Centers a set of variables around a set of factors",
      "topics": [
        "demean"
      ]
    },
    {
      "page": "demeaning_algo",
      "title": "Controls the parameters of the demeaning procedure",
      "topics": [
        "demeaning_algo"
      ]
    },
    {
      "page": "deviance.fixest",
      "title": "Extracts the deviance of a fixest estimation",
      "topics": [
        "deviance.fixest"
      ]
    },
    {
      "page": "df.residual.fixest",
      "title": "Residual degrees-of-freedom for 'fixest' objects",
      "topics": [
        "df.residual.fixest"
      ]
    },
    {
      "page": "did_means",
      "title": "Treated and control sample descriptives",
      "topics": [
        "did_means"
      ]
    },
    {
      "page": "dsb",
      "title": "Simple and powerful string manipulation with the dot square bracket operator",
      "topics": [
        "dsb"
      ]
    },
    {
      "page": "emmeans_support",
      "title": "Support for emmeans package",
      "topics": [
        "emmeans_support"
      ]
    },
    {
      "page": "est_env",
      "title": "Estimates a 'fixest' estimation from a 'fixest' environment",
      "topics": [
        "est_env"
      ]
    },
    {
      "page": "estfun.fixest",
      "title": "Extracts the scores from a fixest estimation",
      "topics": [
        "estfun.fixest"
      ]
    },
    {
      "page": "etable",
      "title": "Estimations table (export the results of multiples estimations to a DF or to Latex)",
      "topics": [
        "esttable",
        "esttex",
        "etable",
        "getFixest_etable",
        "log_etable",
        "print.etable_df",
        "print.etable_tex",
        "setFixest_etable"
      ]
    },
    {
      "page": "extralines_register",
      "title": "Register 'extralines' macros to be used in 'etable'",
      "topics": [
        "extralines_register"
      ]
    },
    {
      "page": "l",
      "title": "Lags a variable in a 'fixest' estimation",
      "topics": [
        "d",
        "f",
        "l"
      ]
    },
    {
      "page": "fdim",
      "title": "Formatted dimension",
      "topics": [
        "fdim"
      ]
    },
    {
      "page": "feglm",
      "title": "Fixed-effects GLM estimations",
      "topics": [
        "feglm",
        "feglm.fit",
        "fepois"
      ]
    },
    {
      "page": "femlm",
      "title": "Fixed-effects maximum likelihood models",
      "topics": [
        "femlm",
        "fenegbin"
      ]
    },
    {
      "page": "feNmlm",
      "title": "Fixed effects nonlinear maximum likelihood models",
      "topics": [
        "feNmlm"
      ]
    },
    {
      "page": "feols",
      "title": "Fixed-effects OLS estimation",
      "topics": [
        "feols",
        "feols.fit"
      ]
    },
    {
      "page": "fitstat",
      "title": "Computes fit statistics of fixest objects",
      "topics": [
        "fitstat"
      ]
    },
    {
      "page": "fitstat_register",
      "title": "Register custom fit statistics",
      "topics": [
        "fitstat_register"
      ]
    },
    {
      "page": "fitted.fixest",
      "title": "Extracts fitted values from a 'fixest' fit",
      "topics": [
        "fitted.fixest",
        "fitted.values.fixest"
      ]
    },
    {
      "page": "fixef.fixest",
      "title": "Extract the Fixed-Effects from a 'fixest' estimation.",
      "topics": [
        "fixef.fixest"
      ]
    },
    {
      "page": "fixest_data",
      "title": "Retrieves the data set used for a 'fixest' estimation",
      "topics": [
        "fixest_data"
      ]
    },
    {
      "page": "fixest_startup_msg",
      "title": "Permanently removes the fixest package startup message",
      "topics": [
        "fixest_startup_msg"
      ]
    },
    {
      "page": "formula.fixest",
      "title": "Extract the formula of a 'fixest' fit",
      "topics": [
        "formula.fixest",
        "formula.fixest_multi"
      ]
    },
    {
      "page": "fulton",
      "title": "Fulton Fish Market data",
      "topics": [
        "fulton"
      ]
    },
    {
      "page": "getFixest_ssc",
      "title": "Gets the default values for the small sample correction",
      "topics": [
        "getFixest_ssc"
      ]
    },
    {
      "page": "hatvalues.fixest",
      "title": "Hat values for 'fixest' objects",
      "topics": [
        "hatvalues.fixest"
      ]
    },
    {
      "page": "i",
      "title": "Create, or interact variables with, factors",
      "topics": [
        "i"
      ]
    },
    {
      "page": "lag.formula",
      "title": "Lags a variable using a formula",
      "topics": [
        "lag.formula",
        "lag_fml"
      ]
    },
    {
      "page": "logLik.fixest",
      "title": "Extracts the log-likelihood",
      "topics": [
        "logLik.fixest"
      ]
    },
    {
      "page": "model.matrix.fixest",
      "title": "Design matrix of a 'fixest' object",
      "topics": [
        "model.matrix.fixest"
      ]
    },
    {
      "page": "models",
      "title": "Extracts the models tree from a 'fixest_multi' object",
      "topics": [
        "models"
      ]
    },
    {
      "page": "n_models",
      "title": "Gets the dimension of 'fixest_multi' objects",
      "topics": [
        "n_models"
      ]
    },
    {
      "page": "n_unik",
      "title": "Prints the number of unique elements in a data set",
      "topics": [
        "n_unik",
        "print.list_n_unik",
        "print.vec_n_unik"
      ]
    },
    {
      "page": "nobs.fixest",
      "title": "Extracts the number of observations form a 'fixest' object",
      "topics": [
        "nobs.fixest"
      ]
    },
    {
      "page": "obs",
      "title": "Extracts the observations used for the estimation",
      "topics": [
        "case.names.fixest",
        "obs"
      ]
    },
    {
      "page": "osize",
      "title": "Formatted object size",
      "topics": [
        "osize",
        "print.osize"
      ]
    },
    {
      "page": "panel",
      "title": "Constructs a 'fixest' panel data base",
      "topics": [
        "panel"
      ]
    },
    {
      "page": "plot.fixest",
      "title": "plot methods for 'fixest' and 'fixest_multi' objects",
      "topics": [
        "plot.fixest"
      ]
    },
    {
      "page": "plot.fixest.fixef",
      "title": "Displaying the most notable fixed-effects",
      "topics": [
        "plot.fixest.fixef"
      ]
    },
    {
      "page": "predict.fixest",
      "title": "Predict method for 'fixest' fits",
      "topics": [
        "predict.fixest"
      ]
    },
    {
      "page": "print.fixest",
      "title": "A print facility for 'fixest' objects.",
      "topics": [
        "getFixest_print",
        "print.fixest",
        "setFixest_print"
      ]
    },
    {
      "page": "print.fixest_fitstat",
      "title": "Print method for fit statistics of fixest estimations",
      "topics": [
        "print.fixest_fitstat"
      ]
    },
    {
      "page": "print.fixest_multi",
      "title": "Print method for fixest_multi objects",
      "topics": [
        "print.fixest_multi"
      ]
    },
    {
      "page": "print.fixest_vcov",
      "title": "A print facility for the VCOVs from 'fixest' objects.",
      "topics": [
        "print.fixest_vcov"
      ]
    },
    {
      "page": "print.ssc_type",
      "title": "Method to print the type of small sample correction",
      "topics": [
        "print.ssc_type"
      ]
    },
    {
      "page": "r2",
      "title": "R2s of 'fixest' models",
      "topics": [
        "r2"
      ]
    },
    {
      "page": "ref",
      "title": "Refactors a variable",
      "topics": [
        "ref"
      ]
    },
    {
      "page": "rep.fixest",
      "title": "Replicates 'fixest' objects",
      "topics": [
        ".l",
        "rep.fixest",
        "rep.fixest_list"
      ]
    },
    {
      "page": "resid.fixest",
      "title": "Extracts residuals from a 'fixest' object",
      "topics": [
        "resid.fixest",
        "residuals.fixest"
      ]
    },
    {
      "page": "resid.fixest_multi",
      "title": "Extracts the residuals from a 'fixest_multi' object",
      "topics": [
        "resid.fixest_multi",
        "residuals.fixest_multi"
      ]
    },
    {
      "page": "sample_df",
      "title": "Randomly draws observations from a data set",
      "topics": [
        "sample_df"
      ]
    },
    {
      "page": "setFixest_coefplot",
      "title": "Sets the defaults of coefplot",
      "topics": [
        "getFixest_coefplot",
        "setFixest_coefplot"
      ]
    },
    {
      "page": "setFixest_dict",
      "title": "Sets/gets the dictionary relabeling the variables",
      "topics": [
        "getFixest_dict",
        "setFixest_dict"
      ]
    },
    {
      "page": "setFixest_estimation",
      "title": "Default arguments for fixest estimations",
      "topics": [
        "getFixest_estimation",
        "setFixest_estimation"
      ]
    },
    {
      "page": "setFixest_fml",
      "title": "Sets/gets formula macros",
      "topics": [
        "getFixest_fml",
        "setFixest_fml"
      ]
    },
    {
      "page": "setFixest_multi",
      "title": "Sets properties of 'fixest_multi' objects",
      "topics": [
        "getFixest_multi",
        "setFixest_multi"
      ]
    },
    {
      "page": "setFixest_notes",
      "title": "Sets/gets whether to display notes in 'fixest' estimation functions",
      "topics": [
        "getFixest_notes",
        "setFixest_notes"
      ]
    },
    {
      "page": "setFixest_nthreads",
      "title": "Sets/gets the number of threads to use in 'fixest' functions",
      "topics": [
        "getFixest_nthreads",
        "setFixest_nthreads"
      ]
    },
    {
      "page": "setFixest_ssc",
      "title": "Sets the default values for the small sample correction",
      "topics": [
        "setFixest_ssc"
      ]
    },
    {
      "page": "setFixest_vcov",
      "title": "Sets the default type of standard errors to be used",
      "topics": [
        "getFixest_vcov",
        "setFixest_vcov"
      ]
    },
    {
      "page": "sigma.fixest",
      "title": "Residual standard deviation of 'fixest' estimations",
      "topics": [
        "sigma.fixest"
      ]
    },
    {
      "page": "sparse_model_matrix",
      "title": "Design matrix of a 'fixest' object returned in sparse format",
      "topics": [
        "sparse_model_matrix"
      ]
    },
    {
      "page": "ssc",
      "title": "Governs the small sample correction in 'fixest' VCOVs",
      "topics": [
        "ssc"
      ]
    },
    {
      "page": "stepwise",
      "title": "Stepwise estimation tools",
      "topics": [
        "csw",
        "csw0",
        "mvsw",
        "stepwise",
        "sw",
        "sw0"
      ]
    },
    {
      "page": "style.df",
      "title": "Style of data.frames created by etable",
      "topics": [
        "style.df"
      ]
    },
    {
      "page": "style.tex",
      "title": "Style definitions for Latex tables",
      "topics": [
        "style.tex"
      ]
    },
    {
      "page": "summary.fixest",
      "title": "Summary of a 'fixest' object. Computes different types of standard errors.",
      "topics": [
        "summary.fixest",
        "summary.fixest_list"
      ]
    },
    {
      "page": "summary.fixest_multi",
      "title": "Summary for fixest_multi objects",
      "topics": [
        "summary.fixest_multi"
      ]
    },
    {
      "page": "summary.fixest.fixef",
      "title": "Summary method for fixed-effects coefficients",
      "topics": [
        "summary.fixest.fixef"
      ]
    },
    {
      "page": "sunab",
      "title": "Sun and Abraham interactions",
      "topics": [
        "sunab",
        "sunab_att"
      ]
    },
    {
      "page": "terms.fixest",
      "title": "Extract the terms",
      "topics": [
        "terms.fixest"
      ]
    },
    {
      "page": "to_integer",
      "title": "Fast transform of any type of vector(s) into an integer vector",
      "topics": [
        "to_integer"
      ]
    },
    {
      "page": "trade",
      "title": "Trade data sample",
      "topics": [
        "trade"
      ]
    },
    {
      "page": "unpanel",
      "title": "Dissolves a 'fixest' panel",
      "topics": [
        "unpanel"
      ]
    },
    {
      "page": "update.fixest",
      "title": "Updates a 'fixest' estimation",
      "topics": [
        "update.fixest",
        "update.fixest_multi"
      ]
    },
    {
      "page": "vcov_cluster",
      "title": "Clustered VCOV",
      "topics": [
        "vcov_cluster"
      ]
    },
    {
      "page": "vcov_conley",
      "title": "Conley VCOV",
      "topics": [
        "conley",
        "vcov_conley"
      ]
    },
    {
      "page": "vcov_hac",
      "title": "HAC VCOVs",
      "topics": [
        "DK",
        "driscoll_kraay",
        "newey_west",
        "NW",
        "vcov_DK",
        "vcov_hac",
        "vcov_NW"
      ]
    },
    {
      "page": "vcov_hetero",
      "title": "Heteroskedasticity-Robust VCOV",
      "topics": [
        "vcov_hetero"
      ]
    },
    {
      "page": "vcov.fixest",
      "title": "Computes the variance/covariance of a 'fixest' object",
      "topics": [
        "vcov.fixest"
      ]
    },
    {
      "page": "wald",
      "title": "Wald test of nullity of coefficients",
      "topics": [
        "wald"
      ]
    },
    {
      "page": "weights.fixest",
      "title": "Extracts the weights from a 'fixest' object",
      "topics": [
        "weights.fixest"
      ]
    },
    {
      "page": "xpd",
      "title": "Expands formula macros",
      "topics": [
        "xpd"
      ]
    }
  ],
  "_readme": "https://github.com/lrberge/fixest/raw/HEAD/README.md",
  "_rundeps": [
    "dreamerr",
    "Formula",
    "lattice",
    "nlme",
    "numDeriv",
    "Rcpp",
    "sandwich",
    "stringmagic",
    "zoo"
  ],
  "_sysdeps": [
    {
      "shlib": "libstdc++",
      "package": "libstdc++6",
      "source": "gcc",
      "version": "14.2.0-4ubuntu2~24.04.1",
      "name": "c++",
      "homepage": "http://gcc.gnu.org/",
      "description": "GNU Standard C++ Library v3"
    },
    {
      "shlib": "libgomp",
      "package": "libgomp1",
      "source": "gcc",
      "version": "14.2.0-4ubuntu2~24.04.1",
      "name": "openmp",
      "homepage": "http://gcc.gnu.org/",
      "description": "GCC OpenMP (GOMP) support library"
    }
  ],
  "_vignettes": [
    {
      "source": "exporting_tables.Rmd",
      "filename": "exporting_tables.html",
      "title": "Exporting estimation tables",
      "author": "Laurent Bergé and Grant McDermott",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Preliminaries",
        "Displaying tables in the console",
        "Styling console output with style.df",
        "Postprocessing with postprocess.df",
        "Setting default values",
        "Exporting tables to LaTeX",
        "Styling LaTeX output with style.tex",
        "Postprocessing with postprocess.tex",
        "Setting default values: LaTeX edition",
        "Highlighting coefficients",
        "Frame",
        "Row colors",
        "Style",
        "LaTeX extras",
        "threeparttable",
        "adjustbox",
        "makecell",
        "Exporting tables to other formats",
        "Exporting tables as PNGs",
        "Quarto and Rmarkdown: argument markdown",
        "CSS for custom HTML output",
        "Monitoring the look of the tables: the argument page.width",
        "RStudio and Positron (VS Code): argument view",
        "Custom fit statistics",
        "Other tabling software"
      ],
      "created": "2020-07-10 09:12:30",
      "modified": "2026-05-28 09:10:01",
      "commits": 23
    },
    {
      "source": "fixest_walkthrough.Rmd",
      "filename": "fixest_walkthrough.html",
      "title": "Fast Fixed-Effects Estimation: Short Introduction",
      "author": "Laurent Bergé and Grant McDermott",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Simple example using trade data",
        "Estimation",
        "Clustering the standard-errors",
        "Other standard-errors",
        "Other estimation functions",
        "Viewing the results in R",
        "Multiple estimations",
        "Exporting the results to Latex",
        "An elaborate example",
        "Extracting the fixed-effects coefficients",
        "The vcov argument",
        "Basics: main calls and shortcuts",
        "Using dedicated functions",
        "Small sample correction",
        "Other types of VCOVs",
        "Instrumental variables",
        "Interaction terms",
        "Interactions involving fixed-effects",
        "Combining several fixed-effects (fe1^fe2^fe3...)",
        "Varying slopes (fe[x])",
        "Interactions that don't involve fixed-effects",
        "A compact syntax for factors and interactions: i()",
        "Simple difference-in-differences (TWFE)",
        "Staggered difference-in-differences (Sun and Abraham, 2020)",
        "Additional features",
        "Formula: macros and dot square brackets",
        "Formula macros",
        "The dot square bracket operator",
        "Lagging variables",
        "Lagging variables in an estimation",
        "Setting up a panel data set",
        "Creating lag/lead variables",
        "Non-linear in parameters example",
        "Adding fixed-effects to non-linear in parameters models",
        "Multi-threading"
      ],
      "created": "2019-08-02 09:32:47",
      "modified": "2026-05-27 14:54:55",
      "commits": 48
    },
    {
      "source": "multiple_estimations.Rmd",
      "filename": "multiple_estimations.html",
      "title": "Multiple estimations",
      "author": "Laurent Bergé",
      "engine": "knitr::rmarkdown",
      "headings": [
        "First illustration",
        "Performing multiple estimations",
        "Multiple LHS",
        "Multiple RHS and fixed-effects: stepwise functions",
        "Split sample estimations",
        "Combining multiple estimations",
        "Manipulation of multiple estimations",
        "Basic access",
        "Putting order",
        "Some notes",
        "Note on standard-errors",
        "Note on IVs",
        "Note on memory usage"
      ],
      "created": "2020-12-09 15:05:48",
      "modified": "2026-05-27 14:54:55",
      "commits": 9
    },
    {
      "source": "collinearity.Rmd",
      "filename": "collinearity.html",
      "title": "On collinearity",
      "author": "Laurent Bergé",
      "engine": "knitr::rmarkdown",
      "headings": [
        "What collinearity is",
        "This document's definitions",
        "Why collinearity can be a problem",
        "Technical reason",
        "Substantial reason",
        "When is collinearity a problem?",
        "The model is misspecified",
        "Example 1: Gender gap in publications",
        "Example 2: Sneaky misspecification",
        "Econometrics software and collinearity",
        "Detecting collinearity: Automatic variable removal algorithms",
        "Collinearity is a numerical problem",
        "When automatic removal is good",
        "When automatic removal bites"
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        "Yet more details",
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        "\"IID\" SEs in the presence of fixed-effects",
        "Clustered SEs",
        "HAC SEs",
        "Other multiple fixed-effects methods",
        "Defining how to compute the standard-errors once and for all",
        "Changelog",
        "References & acknowledgments"
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      "modified": "2026-05-27 14:54:55",
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