`as(ests, "fixest_multi")`

[kylebutts]

Just a thought, is it worth exposing a as(ests, "fixest_multi") function?

Adding "fixest_multi" to the class of a list of ests works (in the cases I've tried), but I'm not sure if I'm missing anything weird? Just an idea since I often times will do a map() that returns fixest objects and it'd be nice to have them all print out nicely

library(fixest)
ests <- list(
  feols(mpg ~ hp, mtcars),
  feols(mpg ~ hp + i(cyl), mtcars)
)
class(ests) <- c("fixest_multi", "list")
ests
#>                                 x.1              x.2
#> Dependent Var.:                 mpg              mpg
#>                                                     
#> Constant           30.10*** (1.634) 28.65*** (1.588)
#> hp              -0.0682*** (0.0101) -0.0240 (0.0154)
#> cyl = 6                             -5.968** (1.639)
#> cyl = 8                             -8.521** (2.326)
#> _______________ ___________________ ________________
#> S.E. type                       IID              IID
#> Observations                     32               32
#> R2                          0.60244          0.75386
#> Adj. R2                     0.58919          0.72749
#> ---
#> Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1