Exporting and Importing Lists

[Nil_07]

I’m working on a shiny application where I need to download a list of one model equation, some plots and some data, and be able to import it later in another application for reuse. I have tried to use RDS and RDATA formats for it, but it hasn’t worked till now, can someone suggest a way to do the same?

[pieterjanvc]

Hi,

This other application is also an R-app? Because RDS and RDATA only work in other ones. Normally if you save it correctly, you should just be able to import it without issues from one R script into another. Here is a guide:

Saving Data into R Data Format: RDS and RDATA - Easy Guides - Wiki - STHDA

If you want to import data into an app other than R, you should save the data in a more commonly supported format like JSON, CSV, ... For lists JSON is a good choice. If you still get stuck, try posting a reprex here for more details. A reprex consists of the minimal code and data needed to recreate the issue/question you're having. You can find instructions how to build and share one here:

FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A minimal reproducible example consists of the following items: A minimal dataset, necessary to reproduce the issue The minimal runnable code necessary to reproduce the issue, which can be run on the given dataset, and including the necessary information on the used packages. Let's quickly go over each one of these with examples: Minimal Dataset (Sample Data) You need to provide a data frame that is small enough to be (reasonably) pasted on a post, but big enough to reproduce your issue. Let's say, as an example, that you are working with the iris data frame head(iris) #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> 1 5.1 3.5 1.4 0.…

Hope this helps,
PJ

[Nil_07]

Hi!
Thank you for your reply.
The app I am using is also a shiny app but whatever I am downloading, I am not being able to show it. I have already used the RDS and RDATA formats but I am not being able to use the data from the string for further analysis.

[nirgrahamuk]

Have you tried using RDS or RData in a conventional R script without involving shiny ?
Its good to be familiar and comfortable with things before introducing them to more complicated shiny apps I find.

[pieterjanvc]

HI,

Why don't you make us a reprex so we can have a better idea of the issue.

Issues with Shiny code can stem from both the reactive Shiny code itself or the regular R code used in the functions. In order for us to help you with your question, please provide us a minimal reproducible example (Reprex) where you provide a minimal (dummy) dataset and code that can recreate the issue. One we have that, we can go from there. For help on creating a Reprex, see this guide:

Shiny debugging and reprex guide

Shiny issues can be challenging to resolve relative to other problems with your code or statistical methods. Shiny apps are often large, complex projects with interacting files. When seeking help from others it is considered polite to: First, do your best to work through RStudio's debugging tools to diagnose your issue on your own. Often those shiny logs and tracebacks are useful to others trying to help out. Second, strive to minimize the effort required to replicate your issue. You can do this with a reproducible example ("reprex"). Shiny Debugging Errors in Shiny code can be difficult to track down. If you don't know where your problem is coming from, you can track it down with some o…