I have a shiny app that creates numerous reactive values variables depending on other user input. I named these variables in a loop with the assign() function. Ex: list_index1, list_index2, list_index3,... I cannot figure out to access the value of these variable in a loop. Of course i could do list…

This may not be your best solution, but if you want to use text to build up an expression to be evaluated: # we want to replicate this iris$Sepal.Length # this will fail paste0("ir", "is")$Sepal.Length # this will work eval(parse(text = paste0("ir", "is", "$Sepal.Length")))

Creating variable names for reactiveValues on the fly and then accessing their values? R Shiny

shiny

nirgrahamuk March 14, 2021, 2:05pm 3

I recommend against using assign in your shiny app, I don't think I've come across a good usecase for that yet.
Look at this recent example I made for another user.

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