Running model studio in a shiny app

[sjoku]

I would like to include the model output inside an existing shiny app (or as a standalone app). Is there any existing code or wrappers for this?

[hbaniecki]

I think it would be a great feature to support modelStudio in Shiny. I added a widget_id argument to the modelStudio() function on the ms-shiny branch. I'm not a shiny expert but it should allow for modelStudio rendering using the r2d3 package (modelStudio is a r2d3 class object, see https://rstudio.github.io/r2d3/articles/shiny.html).

You can install the new version using

install.packages('devtools')
devtools::install_github('ModelOriented/modelStudio', ref='ms-shiny')

and try it out - feedback appreciated, as I can expand this feature further.

Consider the following example:

library(shiny)
library(r2d3)


ui <- fluidPage(
  textInput("text", h3("Text input"), 
            value = "Enter text..."),
  uiOutput('dashboard')
)

server <- function(input, output) {
  #:# id of div where modelStudio will appear
  WIDGET_ID = 'MODELSTUDIO'
  
  #:# create modelStudio 
  library(modelStudio)
  library(DALEX)
  model <- glm(survived ~., data = titanic_imputed, family = "binomial")
  explainer <- explain(model,
                       data = titanic_imputed,
                       y = titanic_imputed$survived,
                       label = "Titanic GLM",
                       verbose = FALSE)
  ms <- modelStudio(explainer,
                    widget_id = WIDGET_ID,  #:# use the widget_id 
                    show_info = FALSE)    
  ms$elementId <- NULL                      #:# remove elementId to stop the warning

  #:# basic render d3 output
  output[[WIDGET_ID]] <- renderD3({
    ms
  })
  
  #:# use render ui to set proper width and height
  output$dashboard <- renderUI({
    d3Output(WIDGET_ID, width=ms$width, height=ms$height)
  })
}

shinyApp(ui = ui, server = server)

[hbaniecki]

The example is now added to the vignette https://modelstudio.drwhy.ai/articles/ms-perks-features.html#shiny-1