I would like to call a certain variable within a reactive expression. Something like this:
server.R
library(raster)
shinyServer(fun
"With data()$asc_new1 you wont be able to access the in the reactive context created variables (at least with the current shiny version).
You need data()[1] data()[2] if you put it in a list like MadScone. Calling it with the $ sign would raise
Warning: Unhandled error in observer: $ operator is invalid for atomic vectors
However, the error your getting
Error in data()$fitnew : $ operator not defined for this S4 class
is not only because you access the variable wrong. You named the output of your reactive function data which is reserved name in R. You want to change that to myData or something.