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CESER

CRAN status

Overview

The package provides a function to compute Cluster Estimated Standard Errors (CESE).

For details, see Jackson, John (2020) Corrected Standard Errors with Clustered Data. Political Analysis, Volume 28, Issue 3July 2020 , pp. 318-339.

Instalation

From CRAN

install.packages("ceser")

To install the development version (it requires the package "devtools"):

devtools::install_github("DiogoFerrari/ceser")

# If you don't want to update the dependencies, use: (you may need to install some dependencies manually)
devtools::install_github("DiogoFerrari/ceser", dependencies=F)

Usage

Check the complete documentation here and vignette here.

Here is a simple example (for more information, see =help(ceser)= and =help(vocvCESE)=).

library(ceser)

data(dcese)
mod  = lm(enep ~  enpc + fapres + enpcfapres + proximity + eneg + logmag + logmag_eneg , data=dcese)

## --------------------------------------
## Getting the variance covariance matrix
## -------------------------------------- 
## Original variance-covariance matrix (no clustered std. errors)
vcov(mod)

## Variance-covariance matrix using CRSE (sandwish package)
## sandwich::vcovCL(mod, cluster = ~ country)
## sandwich::vcovCL(mod, cluster = ~ country, type="HC3")

## Variance-covariance matrix using CESE
ceser::vcovCESE(mod, cluster = ~ country)
ceser::vcovCESE(mod, cluster = ~ country, type="HC3") # HC3 correction

## ---------
## Summaries
## ---------
## no robust SE 
summary(mod)                                                                          

## summary table using CRSE (sandwich package)
## lmtest::coeftest(mod, vcov = sandwich::vcovCL, cluster = ~ country)                   

## summary using CESE
lmtest::coeftest(mod, vcov = ceser::vcovCESE, cluster = ~ country, type='HC3')

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Compute Cluster Estimated Standard Error (CESE)

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