Access to the IDs of a list in Shiny
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I have to create a variable number of checkboxInput with a related numeric input for each one. I have found on this page an interesting way to display it on the UI easily through a list, but I am not managing to use their ID together as an input parameter on other server functions.
I've tried:
input[[paste0("x",1:length(Animals)]]
But I need an alternative way to use as input all the ID's.
The code is the following one:
runApp(list(
ui = fluidPage(
fluidRow(
column(3,
uiOutput("RenderSliders")
)
)
),
server = function(input, output) {
output$RenderSliders <- renderUI({
Animals <- c("cat","dog","fish","cow")
NrOfAnimals <- length(Animals)
L <- vector("list",length = NrOfAnimals)
for(i in 1:NrOfAnimals){
L[[i]] <- fluidRow(column(1,checkboxInput(paste0("x",i) ,NULL,TRUE)),
column(2,Animals[i]),
column(4,numericInput(paste0("y",i) , NULL, value = i, min = 0, max = 10, step = 1)))
}
return(L)
})
}
))
I would appreciate any help you could provide me.
Thank you everybody.
Edit: Your answer help me to debug my app and realize that the problem is not the one I though. I update the post with the correct question.
r shiny
asked Nov 23 '18 at 11:23
NadrieciNadrieci
2416
add a comment |
I have to create a variable number of checkboxInput with a related numeric input for each one. I have found on this page an interesting way to display it on the UI easily through a list, but I am not managing to use their ID together as an input parameter on other server functions.
I've tried:
input[[paste0("x",1:length(Animals)]]
But I need an alternative way to use as input all the ID's.
The code is the following one:
runApp(list(
ui = fluidPage(
fluidRow(
column(3,
uiOutput("RenderSliders")
)
)
),
server = function(input, output) {
output$RenderSliders <- renderUI({
Animals <- c("cat","dog","fish","cow")
NrOfAnimals <- length(Animals)
L <- vector("list",length = NrOfAnimals)
for(i in 1:NrOfAnimals){
L[[i]] <- fluidRow(column(1,checkboxInput(paste0("x",i) ,NULL,TRUE)),
column(2,Animals[i]),
column(4,numericInput(paste0("y",i) , NULL, value = i, min = 0, max = 10, step = 1)))
}
return(L)
})
}
))
I would appreciate any help you could provide me.
Thank you everybody.
Edit: Your answer help me to debug my app and realize that the problem is not the one I though. I update the post with the correct question.
r shiny
asked Nov 23 '18 at 11:23
NadrieciNadrieci
2416
2
What have you tried that doesn't work? I've tried to addobserve({ cat("x1:", input[["x1"]], "n") })in the body of yourserverfunction and it works as intended.
– Aurèle
Nov 23 '18 at 12:25
add a comment |
I have to create a variable number of checkboxInput with a related numeric input for each one. I have found on this page an interesting way to display it on the UI easily through a list, but I am not managing to use their ID together as an input parameter on other server functions.
I've tried:
input[[paste0("x",1:length(Animals)]]
But I need an alternative way to use as input all the ID's.
The code is the following one:
runApp(list(
ui = fluidPage(
fluidRow(
column(3,
uiOutput("RenderSliders")
)
)
),
server = function(input, output) {
output$RenderSliders <- renderUI({
Animals <- c("cat","dog","fish","cow")
NrOfAnimals <- length(Animals)
L <- vector("list",length = NrOfAnimals)
for(i in 1:NrOfAnimals){
L[[i]] <- fluidRow(column(1,checkboxInput(paste0("x",i) ,NULL,TRUE)),
column(2,Animals[i]),
column(4,numericInput(paste0("y",i) , NULL, value = i, min = 0, max = 10, step = 1)))
}
return(L)
})
}
))
I would appreciate any help you could provide me.
Thank you everybody.
Edit: Your answer help me to debug my app and realize that the problem is not the one I though. I update the post with the correct question.
r shiny
asked Nov 23 '18 at 11:23
NadrieciNadrieci
2416
I have to create a variable number of checkboxInput with a related numeric input for each one. I have found on this page an interesting way to display it on the UI easily through a list, but I am not managing to use their ID together as an input parameter on other server functions.
I've tried:
input[[paste0("x",1:length(Animals)]]
But I need an alternative way to use as input all the ID's.
The code is the following one:
runApp(list(
ui = fluidPage(
fluidRow(
column(3,
uiOutput("RenderSliders")
)
)
),
server = function(input, output) {
output$RenderSliders <- renderUI({
Animals <- c("cat","dog","fish","cow")
NrOfAnimals <- length(Animals)
L <- vector("list",length = NrOfAnimals)
for(i in 1:NrOfAnimals){
L[[i]] <- fluidRow(column(1,checkboxInput(paste0("x",i) ,NULL,TRUE)),
column(2,Animals[i]),
column(4,numericInput(paste0("y",i) , NULL, value = i, min = 0, max = 10, step = 1)))
}
return(L)
})
}
))
I would appreciate any help you could provide me.
Thank you everybody.
Edit: Your answer help me to debug my app and realize that the problem is not the one I though. I update the post with the correct question.
r shiny
r shiny
asked Nov 23 '18 at 11:23
NadrieciNadrieci
2416
asked Nov 23 '18 at 11:23
NadrieciNadrieci
2416
edited Nov 27 '18 at 19:15
Nadrieci
asked Nov 23 '18 at 11:23
NadrieciNadrieci
2416
asked Nov 23 '18 at 11:23
NadrieciNadrieci
2416
asked Nov 23 '18 at 11:23
NadrieciNadrieci
2416
2416
2
What have you tried that doesn't work? I've tried to addobserve({ cat("x1:", input[["x1"]], "n") })in the body of yourserverfunction and it works as intended.
– Aurèle
Nov 23 '18 at 12:25
add a comment |
2
What have you tried that doesn't work? I've tried to addobserve({ cat("x1:", input[["x1"]], "n") })in the body of yourserverfunction and it works as intended.
– Aurèle
Nov 23 '18 at 12:25
2
2
What have you tried that doesn't work? I've tried to add
observe({ cat("x1:", input[["x1"]], "n") }) in the body of your server function and it works as intended.– Aurèle
Nov 23 '18 at 12:25
What have you tried that doesn't work? I've tried to add
observe({ cat("x1:", input[["x1"]], "n") }) in the body of your server function and it works as intended.– Aurèle
Nov 23 '18 at 12:25
add a comment |
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What have you tried that doesn't work? I've tried to add
observe({ cat("x1:", input[["x1"]], "n") })in the body of yourserverfunction and it works as intended.– Aurèle
Nov 23 '18 at 12:25