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Convert a panel for estimation packages

Source: R/output.R
as_pdata.Rd

Prepares a panel for plm, fixest or csdm. The package does not re-implement estimators; it hands a correctly indexed panel to them.

Usage

as_pdata(x, to = c("plm", "fixest", "csdm", "data.frame"))

Arguments

x

An rps_panel (or any data frame with state and year).

to

Target package.

Value

An object of the requested class.

Details

  • "plm": a pdata.frame indexed by state and year.

  • "fixest": a fixest_panel (for lag and lead operators) indexed by state and year.

  • "csdm": a plain data frame sorted by state and year, with state as a factor; pass id = "state" and time = "year" to csdm.

  • "data.frame": the same sorted plain data frame.

Examples

p <- build_panel(states = c("CA", "TX"), years = 2005:2020, groups = "rps",
                 rps_methods = c("adoption", "nominal"))
head(as_pdata(p, "data.frame"))
#>   state state_name fips year rps_adoption rps_nominal
#> 1    CA California   06 2005            1   0.1417857
#> 2    CA California   06 2006            1   0.1534286
#> 3    CA California   06 2007            1   0.1650714
#> 4    CA California   06 2008            1   0.1767143
#> 5    CA California   06 2009            1   0.1883571
#> 6    CA California   06 2010            1   0.2000000
if (requireNamespace("plm", quietly = TRUE)) {
  class(as_pdata(p, "plm"))
}
#> [1] "pdata.frame" "data.frame"