did glance custom

[grantmcdermott]

Last one of these small PRs for today. Same energy as #356, but for the did package. (Do you want me to add NEWS items for them collectively? Not sure if they warrant it...)

Examples:

devtools::load_all('~/Documents/Projects/modelsummary')
#> ℹ Loading modelsummary
library(did)

data(mpdta, package = 'did')
mpdta$newvar = substr(mpdta$countyreal, 1, 2)

mod0 = att_gt(yname = "lemp",
              gname = "first.treat",
              idname = "countyreal",
              tname = "year",
              xformla = ~1,
              data = mpdta,
              bstrap = FALSE) # turn off default clustering by idname var

mod1 = att_gt(yname = "lemp",
              gname = "first.treat",
              idname = "countyreal",
              tname = "year",
              xformla = ~1,
              data = mpdta)

mod2 = att_gt(yname = "lemp",
              gname = "first.treat",
              idname = "countyreal",
              tname = "year",
              xformla = ~1,
              data = mpdta,
              clustervars = c('countyreal', 'newvar'))

msummary(
    list(mod0, mod1, mod2), 
    'markdown',
    coef_omit = '2005|2006|2007', 
    gof_omit = 'Num|ngroup|ntime|control|method')

	Model 1	Model 2	Model 3
ATT(2004,2004)	-0.011	-0.011	-0.011
	(0.023)	(0.024)	(0.013)
Std.Errors		Clustered (countyreal)	Clustered (countyreal & newvar)

## Dyanmic versions
mod0_d = aggte(mod0, type = "dynamic")
#> Warning in compute.aggte(MP = MP, type = type, balance_e = balance_e, min_e =
#> min_e, : Used bootstrap procedure to compute simultaneous confidence band
mod1_d = aggte(mod1, type = "dynamic")
mod2_d = aggte(mod2, type = "dynamic")
msummary(
    list(mod0_d, mod1_d, mod2_d), 
    'markdown',
    coef_omit = paste(-3:2, collapse = "|"),
    gof_omit = 'Num|ngroup|ntime|control|method')

	Model 1	Model 2	Model 3
ATT(3)	-0.101	-0.101	-0.101
	(0.034)	(0.037)	(0.021)
Std.Errors		Clustered (countyreal)	Clustered (countyreal & newvar)
type	dynamic	dynamic	dynamic

^{Created on 2021-08-16 by the reprex package (v2.0.1)}

[vincentarelbundock]

Looks fantastic. Yeah, adding to NEWS does make sense, I think. These are cool things.

[grantmcdermott]

Sweden. I'll wait until this is merged and then just edit the NEWS file separately.