fixest: rep.fixest – R documentation

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rep.fixest

Replicates fixest objects

Description

Simple function that replicates fixest objects while (optionally) computing different standard-errors. Useful mostly in combination with etable or coefplot.

Usage

## S3 method for class 'fixest'
rep(x, times = 1, each = 1, cluster, ...)

## S3 method for class 'fixest_list'
rep(x, times = 1, each = 1, cluster, ...)

.l(...)

Arguments

`x`	Either a fixest object, either a list of fixest objects created with `.l()`.
`times`	Integer vector giving the number of repetitions of the vector of elements. By default `times = 1`. It must be either of length 1, either of the same length as the argument `x`.
`each`	Integer scalar indicating the repetition of each element. Default is 1.
`cluster`	A list containing the types of standard-error to be computed, default is missing. If not missing, it must be of the same length as `times`, `each`, or the final vector. Note that if the arguments `times` and `each` are missing, then `times` becomes equal to the length of `cluster`. (Note that `cluster` accepts the character values `"standard"` or `"hetero"` to compute non-clustered SEs.)
`...`	In `.l()`: `fixest` objects. In `rep()`: not currently used.

Details

To apply rep.fixest on a list of fixest objects, it is absolutely necessary to use .l() and not list().

Value

Returns a list of the appropriate length. Each element of the list is a fixest object.

Examples

# Let's show results with different standard-errors

est = feols(Ozone ~ Solar.R + Wind + Temp, data = airquality)

my_cluster = list("Month", "Day", ~ Day + Month)

etable(rep(est, cluster = my_cluster))

coefplot(rep(est, cluster = my_cluster), drop = "Int")

#
# To rep multiple objects, you need to use .l()
#

est_bis = feols(Ozone ~ Solar.R + Wind + Temp | Month, airquality)

etable(rep(.l(est, est_bis), cluster = my_cluster))

# using each
etable(rep(.l(est, est_bis), each = 3, cluster = my_cluster))

fixest

Fast Fixed-Effects Estimations

v0.10.0

GPL-3

Authors

Laurent Berge [aut, cre], Sebastian Krantz [ctb], Grant McDermott [ctb] (<https://orcid.org/0000-0001-7883-8573>)

Initial release