Cookbook

Jeremy Wildfire

2021-09-21

Cookbook Vignette

This vignette contains a series of examples showing how to initialize the safetyGraphics Shiny app in different scenarios. For a general overview of the app see this vignette. For more details about adding custom charts, see this vignette.

Setup and installation

safetyGraphics requires R v4 or higher. These examples have been tested using RStudio v1.4, but should work on other platforms with proper configuration.

You can install {safetyGraphics} from CRAN like any other R package:

install.packages("safetyGraphics")
library("safetyGraphics")

Or to use the most recent development version from GitHub, call:

devtools::install_github("safetyGraphics/safetyCharts", ref="dev")
library(safetyCharts)
devtools::install_github("safetyGraphics/safetyGraphics", ref="dev")
library(safetyGraphics)
safetyGraphics::safetyGraphicsApp()

Example 1 - Default App

To run the app with no customizations using sample AdAM data from the {safetyData} package, install the package and run:

safetyGraphics::safetyGraphicsApp()

Example 2 - SDTM Data

The data passed in to the safetyGraphics app can be customized using the data parameter in safetyGraphicsApp(). For example, to run the app with SDTM data saved in {safetyData}, call:

sdtm <- list(
    dm=safetyData::sdtm_dm,
    aes=safetyData::sdtm_ae,
    labs=safetyData::sdtm_lb
)

safetyGraphics::safetyGraphicsApp(domainData=sdtm)

Example 3 - Single Data Domain

Running the app for a single data domain, is similar:

justLabs <- list(labs=safetyData::adam_adlbc)
safetyGraphics::safetyGraphicsApp(domainData=justLabs)

Note that charts with missing data are automatically dropped and the filtering tab is not present since it requires demographics data by default.

Example 4 - Drop Unwanted Charts

Users can also generate a list of charts and then drop charts that they don’t want to include. For example, if you wanted to drop charts with type of “htmlwidgets” you could run this code.

library(purrr)
charts <- makeChartConfig() #gets charts from safetyCharts pacakge by default
notWidgets <- charts %>% purrr::keep(~.x$type != "htmlwidget")
safetyGraphicsApp(charts=notWidgets)

Example 6 - Add a chart

The code below adds a new simple chart showing participants’ age distribution by sex.

ageDist <- function(data, settings){
    p<-ggplot(data = data, aes_(x=as.name(settings$age_col))) +
        geom_histogram() + 
        facet_wrap(as.name(settings$sex_col))
    return(p)
}
ageDist_chart<-list(
    env="safetyGraphics",
    name="ageDist",
    label="Age Distribution",
    type="plot",
    domain="dm",
    workflow=list(
        main="ageDist"
    )
)
charts <- makeChartConfig() 
charts$ageDist<-ageDist_chart
safetyGraphicsApp(charts=charts)

For extensive details on adding and customizing different types of charts, see this vignette.

Example 7 - Non-standard data

Next, let’s initialize the the app with non-standard data. {safetyGraphics} automatically detects AdAM and SDTM data when possible, but for non-standard data, the user must provide a data mapping. This can be done in the app using the data/mapping tab, or can be done when the app is initialized by passing a mapping list to safetyGraphicsApp(). For example:

notAdAM <- list(labs=safetyData::adam_adlbc %>% rename(id = USUBJID))
idMapping<- list(labs=list(id_col="id"))
safetyGraphicsApp(domainData=notAdAM, mapping=idMapping)

Example 8 - Non-standard data #2

For a more realistic example, consider this labs data set (csv). The data can be loaded in to safetyGraphics with the code below, but several items in the mapping page need to be filled in:

labs <- read.csv("https://raw.githubusercontent.com/SafetyGraphics/SafetyGraphics.github.io/master/pilot/SampleData_NoStandard.csv")
safetyGraphics::safetyGraphicsApp(domainData=list(labs=labs))

drawing

Fortunately there is no need to re-enter this mapping information in every time you re-start the app. After filling in these values once, you can export code to restart the app with the specified settings pre-populated. First, click on the setting icon in the header and then on “code” to see this page:

The YAML code provided here captures the updates you’ve made on the mapping page. To re-start the app with those settings, just save these YAML code in a new file called customSettings.yaml in your working directory, and then call:

labs <- read.csv("https://raw.githubusercontent.com/SafetyGraphics/SafetyGraphics.github.io/master/pilot/SampleData_NoStandard.csv")
customMapping <- read_yaml("customSettings.yaml")
safetyGraphics::safetyGraphicsApp(
    domainData=list(labs=labs),
    mapping=customMapping   
)

Note, that for more complex customizations, the setting page also provides a .zip file with a fully re-usable version of the app.