R Shiny - Passing User Input as Global String
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How do I take in a user input and store as environment string in server.R?
Here's an example (which produces an error):
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- as.numeric(renderText(input$n))
output$count_new <- renderText(count/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
r shiny render reactive
asked Nov 10 at 17:40
kquach
427
add a comment |
up vote
0
down vote
favorite
How do I take in a user input and store as environment string in server.R?
Here's an example (which produces an error):
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- as.numeric(renderText(input$n))
output$count_new <- renderText(count/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
r shiny render reactive
asked Nov 10 at 17:40
kquach
427
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
How do I take in a user input and store as environment string in server.R?
Here's an example (which produces an error):
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- as.numeric(renderText(input$n))
output$count_new <- renderText(count/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
r shiny render reactive
asked Nov 10 at 17:40
kquach
427
How do I take in a user input and store as environment string in server.R?
Here's an example (which produces an error):
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- as.numeric(renderText(input$n))
output$count_new <- renderText(count/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
r shiny render reactive
r shiny render reactive
asked Nov 10 at 17:40
kquach
427
asked Nov 10 at 17:40
kquach
427
asked Nov 10 at 17:40
kquach
427
asked Nov 10 at 17:40
kquach
427
asked Nov 10 at 17:40
kquach
427
427
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
Found the solution. Key is to use reactive in front of input. The variable can then be called followed by ().
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- reactive(input$n)
output$count_new <- renderText(count()/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
answered Nov 10 at 18:15
kquach
427
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
Found the solution. Key is to use reactive in front of input. The variable can then be called followed by ().
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- reactive(input$n)
output$count_new <- renderText(count()/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
answered Nov 10 at 18:15
kquach
427
add a comment |
up vote
0
down vote
Found the solution. Key is to use reactive in front of input. The variable can then be called followed by ().
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- reactive(input$n)
output$count_new <- renderText(count()/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
answered Nov 10 at 18:15
kquach
427
add a comment |
up vote
0
down vote
up vote
0
down vote
Found the solution. Key is to use reactive in front of input. The variable can then be called followed by ().
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- reactive(input$n)
output$count_new <- renderText(count()/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
answered Nov 10 at 18:15
kquach
427
Found the solution. Key is to use reactive in front of input. The variable can then be called followed by ().
library(shiny)
# Define the UI
n <- 100
ui <- bootstrapPage(
numericInput('n', 'Number of obs', n),
textOutput('count_new')
)
# Define the server code
server <- function(input, output)
count <- reactive(input$n)
output$count_new <- renderText(count()/10)
# Return a Shiny app object
shinyApp(ui = ui, server = server)
answered Nov 10 at 18:15
kquach
427
answered Nov 10 at 18:15
kquach
427
answered Nov 10 at 18:15
kquach
427
answered Nov 10 at 18:15
kquach
427
427
add a comment |
add a comment |
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