R: Replicates 'fixest' objects

rep.fixest {fixest} | R Documentation

## 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, vcov, ...)

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

    .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.
`vcov` | 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 `vcov`. To see how to summon a VCOV, see the dedicated section in the vignette.
`...` | 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_vcov = list(~ Month, ~ Day, ~ Day + Month)

    etable(rep(est, vcov = my_vcov))

    coefplot(rep(est, vcov = my_vcov), 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), vcov = my_vcov))

    # using each
    etable(rep(.l(est, est_bis), each = 3, vcov = my_vcov))

[Package fixest version 0.10.4 Index]