original, I needed to read the “my” Data only in server.R:
Then I adapted the application in the way, that the line:
is placed in third file: parameter.R and I also referenced:
source("./parameter.r", local=T) in both: in ui.R and in server.R.
The reason is: I need the same consistent calculated variables in both: in ui.R and in server.R. E.g.:
myData<- read.csv(file="../data/....") period_end_date= max(myData$days); period_start_date= min(myData$days); the_period= as.numeric(period_end_date) - as.numeric(period_start_date)
i am afraid that the performance will suffer, when the csv- file become very big.
Or it is really not so? I mean that reading and keeping the file in memory, then the calculation of the same variables take place not really twice?
Thank you for your opinion in advance.