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Show multiply imputed values for a single variable

Source: R/show_var.R
show_var.Rd

Show m sets of imputed values for a specified variable.

Usage

show_var(imputation.list, var.name, original.data, true.values = NULL)

Arguments

imputation.list

A list of m imputed datasets returned by the mixgb imputer.

var.name

The name of a variable of interest.

original.data

The original data with missing data.

true.values

A vector of the true values (if known) of the missing values. In general, this is unknown (true.values = NULL).

Value

A data.table with m columns, each of which represents a set of imputed values for the variable of interest. If true.values is provided, an additional column will display the true values of the missing values.

Examples

# obtain m multiply datasets
params <- list(max_depth = 3, subsample = 1, nthread = 2)
mixgb.data <- mixgb(data = nhanes3, m = 3, xgb.params = params, nrounds = 20)

imputed.BMPHEAD <- show_var(
  imputation.list = mixgb.data, var.name = "BMPHEAD",
  original.data = nhanes3
)
imputed.BMPHEAD
#>           m1       m2       m3
#>  1: 40.81922 40.81922 40.81922
#>  2: 43.95104 43.95104 43.95104
#>  3: 45.60160 45.60160 45.60160
#>  4: 44.79435 44.79435 44.79435
#>  5: 40.94370 40.94370 40.94370
#>  6: 42.99262 42.99262 42.99262
#>  7: 45.47968 45.47968 45.47968
#>  8: 44.79435 44.79435 44.79435
#>  9: 43.09991 43.09991 43.09991
#> 10: 43.97232 43.97232 43.97232
#> 11: 44.77294 44.77294 44.77294
#> 12: 44.74327 44.74327 44.74327
#> 13: 41.50062 41.50062 41.50062
#> 14: 45.69271 45.69271 45.69271
#> 15: 42.72989 42.72989 42.72989
#> 16: 46.17781 46.17781 46.17781
#> 17: 43.16431 43.16431 43.16431
#> 18: 45.60556 45.60556 45.60556
#> 19: 43.84575 43.84575 43.84575
#> 20: 43.72111 43.72111 43.72111
#> 21: 41.81502 41.81502 41.81502
#> 22: 41.60730 41.60730 41.60730
#> 23: 43.47747 43.47747 43.47747
#> 24: 41.58686 41.58686 41.58686
#> 25: 44.58179 44.58179 44.58179
#> 26: 43.03172 43.03172 43.03172
#> 27: 42.21490 42.21490 42.21490
#> 28: 43.43150 43.43150 43.43150
#> 29: 45.54355 45.54355 45.54355
#> 30: 41.21716 41.21716 41.21716
#> 31: 41.44188 41.44188 41.44188
#> 32: 43.27520 43.27520 43.27520
#>           m1       m2       m3