run_stminsights: launch the stminsights shiny app

In stminsights: A 'Shiny' Application for Inspecting Structural Topic Models

launch the stminsights shiny app

Description

run_stminsights launches the app to analyze Structural Topic models. It requires a .RData file with stm objects as illustrated in the example below.

Usage

run_stminsights(use_browser = TRUE)

Arguments

use_browser

Choose whether you want to launch the shiny app in your browser. Defaults to TRUE.

Examples

 ## Not run: 

library(stm)
library(quanteda)

# prepare data
data <- corpus(gadarian, text_field = 'open.ended.response')
docvars(data)$text <- as.character(data)

data <- tokens(data, remove_punct = TRUE) |>
  tokens_wordstem() |>
  tokens_remove(stopwords('english')) |> dfm() |>
  dfm_trim(min_termfreq = 2)

out <- convert(data, to = 'stm')

# fit models and effect estimates
gadarian_3 <- stm(documents = out$documents,
                  vocab = out$vocab,
                  data = out$meta,
                  prevalence = ~ treatment + s(pid_rep),
                  K = 3,
                  max.em.its = 1, # reduce computation time for example
                  verbose = FALSE)

prep_3 <- estimateEffect(1:3 ~ treatment + s(pid_rep), gadarian_3,
                         meta = out$meta)

gadarian_5 <- stm(documents = out$documents,
                  vocab = out$vocab,
                  data = out$meta,
                  prevalence = ~ treatment + s(pid_rep),
                  K = 5,
                  max.em.its = 1, # reduce computation time for example
                  verbose = FALSE)

prep_5 <- estimateEffect(1:5 ~ treatment + s(pid_rep), gadarian_5,
                         meta = out$meta)

# save objects in .RData file
save.image(paste0(tempdir(), '/stm_gadarian.RData'))

# launch the app
if(interactive()){
  run_stminsights()
}


## End(Not run)

stminsights documentation built on April 19, 2023, 1:08 a.m.