Filter, select, or mutate data

These functions modify the input data frame prior to passing it to stable() or stable_long().

st_select(x, ...)

st_mutate(x, ...)

st_filter(x, ...)

Arguments

x

an stobject.

...

passed to dplyr::select(), dplyr::mutate(), or dplyr::filter().

Details

• st_select calls dplyr::select on the data

• st_mutate calls dplyr::mutate on the data

• st_filter calls dplyr::filter on the data

Examples

tab <- pt_data_inventory(pmt_obs, by = "FORM")
obj <- st_new(tab)
st_filter(obj, FORM != "troche")
#> # A tibble: 3 × 7
#>   FORM     Number.SUBJ Number.MISS Number.OBS Number.BQL Percent.OBS Percent.BQL
#>   <chr>          <int>       <int>      <int>      <int> <chr>       <chr>      
#> 1 "capsul…          15           3        317         10 9.1         0.3        
#> 2 "tablet"         130          43       2730         77 78.4        2.2        
#> 3 "\\hlin…         160          50       3386         94 97.3        2.7        
st_select(obj, -contains("BQL"))
#> # A tibble: 3 × 5
#>   FORM                            Number.SUBJ Number.MISS Number.OBS Percent.OBS
#>   <chr>                                 <int>       <int>      <int> <chr>      
#> 1 "capsule"                                15           3        317 9.1        
#> 2 "tablet"                                130          43       2730 78.4       
#> 3 "\\hline \\hline {\\bf All dat…         160          50       3386 97.3       
st_mutate(obj, FORM = ifelse(FORM=="tablet", "ODT", FORM))
#> # A tibble: 3 × 5
#>   FORM                            Number.SUBJ Number.MISS Number.OBS Percent.OBS
#>   <chr>                                 <int>       <int>      <int> <chr>      
#> 1 "capsule"                                15           3        317 9.1        
#> 2 "ODT"                                   130          43       2730 78.4       
#> 3 "\\hline \\hline {\\bf All dat…         160          50       3386 97.3