Extract rater info from a UD model in a tidy format.
raterinfo(model)A mirt::SingleGroupClass model of the democracy scores.
A data frame with rater information for each democracy index over the
range of the latent variable theta.
# \donttest{
# Replicate the official UDS scores (2011 release)
library(dplyr)
library(mirt)
democracy_data <- generate_democracy_scores_dataset(selection = "_pmm", output_format = "wide")
#> Adding fh_pmm data
#> Adding polity_pmm data
#> Adding Arat data
#> Adding blm_pmm data
#> Adding Bollen data
#> Adding Hadenius data
#> Adding mainwaring_pmm data
#> Adding Munck data
#> Adding pacl_pmm data
#> Adding polyarchy_pmm data
#> Adding prc_pmm data
#> Adding Vanhanen_pmm data
#> Finalizing
democracy_data <- prepare_democracy_data(democracy_data)
replication_2011_model <- mirt(democracy_data %>% select(matches("pmm")),
model = 1,
itemtype = "graded",
SE = TRUE, verbose = FALSE)
raterinfo(replication_2011_model)# }
#> # A tibble: 732 × 3
#> rater theta info
#> <chr> <dbl> <dbl>
#> 1 pmm_arat -6 0.00000122
#> 2 pmm_arat -5.8 0.00000247
#> 3 pmm_arat -5.6 0.00000501
#> 4 pmm_arat -5.4 0.0000102
#> 5 pmm_arat -5.2 0.0000206
#> 6 pmm_arat -5 0.0000418
#> 7 pmm_arat -4.8 0.0000847
#> 8 pmm_arat -4.6 0.000172
#> 9 pmm_arat -4.4 0.000349
#> 10 pmm_arat -4.2 0.000707
#> # ℹ 722 more rows