[R] Help with shiny::reactiveFileReader()

Jeff Newmiller jdnewmil at dcn.davis.ca.us
Sat Sep 16 15:45:31 CEST 2017


No. However, you can modify the global environment from within a function if you understand how variable scoping works. [1] See `<<-`. Be warned that this leads down a perilous path of confusing code (side effects) if misused.

[1] http://adv-r.had.co.nz/Environments.html
-- 
Sent from my phone. Please excuse my brevity.

On September 16, 2017 6:04:49 AM PDT, Lars Bishop <lars52r at gmail.com> wrote:
>Hello,
>
>Is it possible to execute functions (outside the ui and server shiny
>environments) after reading data using reactiveFileReader() ?
>
>For example, I'd like to fit a linear model on data read using
>reactiveFileReader() outside ui/server.
>
>
>library(shiny)
>library(dplyr)
>
>bigData <- reactiveFileReader(1000, NULL, 'data.csv', read.csv)
>
>fit <- lm(y ~., data = bigData())
>
>ui <- function() {
>
>}
>
>server <- function(input, output) {
>
>}
>
>Thank you,
>Lars.
>
>	[[alternative HTML version deleted]]
>
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