Add a comparison ID (comparison_id) to keep track of studies in case of identical study_label

add_comparison_id(data)

Arguments

data

A data frame containing data for a meta-analysis

Examples

iipt_dataset %>%
  add_comparison_id()
#> # A tibble: 167 × 28
#>    study_id study_label        year intervention_id country domain  description 
#>       <dbl> <glue>            <dbl>           <dbl> <chr>   <chr>   <chr>       
#>  1        8 Dobe et al., 2011  2011               3 Germany Pain i… Mean pain i…
#>  2        8 Dobe et al., 2011  2011               3 Germany Pain i… Mean pain i…
#>  3        8 Dobe et al., 2011  2011               3 Germany Pain i… Mean pain i…
#>  4        8 Dobe et al., 2011  2011               3 Germany Pain i… Mean pain i…
#>  5        8 Dobe et al., 2011  2011               3 Germany Physic… Pain-relate…
#>  6        8 Dobe et al., 2011  2011               3 Germany Physic… Pain-relate…
#>  7        8 Dobe et al., 2011  2011               3 Germany Physic… Pain-relate…
#>  8        8 Dobe et al., 2011  2011               3 Germany Role f… Missed scho…
#>  9        8 Dobe et al., 2011  2011               3 Germany Role f… Missed scho…
#> 10        8 Dobe et al., 2011  2011               3 Germany Role f… Missed scho…
#> # … with 157 more rows, and 21 more variables: instrument <chr>, outcome <chr>,
#> #   type <chr>, analysis_time <chr>, time_1 <chr>, time_2 <chr>, mean_1 <dbl>,
#> #   mean_2 <dbl>, sd_1 <dbl>, sd_2 <dbl>, n_pairs <dbl>, n_1 <dbl>, n_2 <dbl>,
#> #   correlation <dbl>, g <dbl>, var_g <dbl>, se_g <dbl>, r <dbl>, var_r <dbl>,
#> #   se_r <dbl>, comparison_id <chr>