Addressing multiple inputs in shiny
1
I am building a relatively complicated app, where I have dynamic number of inputs titled:
d1, d2 .. dn. At one point I wanted to try addressing multiple inputs at the same time with:
input[[grep(pattern="d+[[:digit:]]",input)]]
which of course caused an error:
Must use single string to index into reactivevalues
So I was wondering whether someone knew an elegant way to do such a thing?
r regex grep shiny
asked Oct 14 '16 at 13:45
Centar 15Centar 15
409
add a comment |
1
I am building a relatively complicated app, where I have dynamic number of inputs titled:
d1, d2 .. dn. At one point I wanted to try addressing multiple inputs at the same time with:
input[[grep(pattern="d+[[:digit:]]",input)]]
which of course caused an error:
Must use single string to index into reactivevalues
So I was wondering whether someone knew an elegant way to do such a thing?
r regex grep shiny
asked Oct 14 '16 at 13:45
Centar 15Centar 15
409
add a comment |
1
1
1
I am building a relatively complicated app, where I have dynamic number of inputs titled:
d1, d2 .. dn. At one point I wanted to try addressing multiple inputs at the same time with:
input[[grep(pattern="d+[[:digit:]]",input)]]
which of course caused an error:
Must use single string to index into reactivevalues
So I was wondering whether someone knew an elegant way to do such a thing?
r regex grep shiny
asked Oct 14 '16 at 13:45
Centar 15Centar 15
409
I am building a relatively complicated app, where I have dynamic number of inputs titled:
d1, d2 .. dn. At one point I wanted to try addressing multiple inputs at the same time with:
input[[grep(pattern="d+[[:digit:]]",input)]]
which of course caused an error:
Must use single string to index into reactivevalues
So I was wondering whether someone knew an elegant way to do such a thing?
r regex grep shiny
r regex grep shiny
asked Oct 14 '16 at 13:45
Centar 15Centar 15
409
asked Oct 14 '16 at 13:45
Centar 15Centar 15
409
asked Oct 14 '16 at 13:45
Centar 15Centar 15
409
asked Oct 14 '16 at 13:45
Centar 15Centar 15
409
asked Oct 14 '16 at 13:45
Centar 15Centar 15
409
409
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
5
You can use names on input :
grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE)
A working example :
library("shiny")
ui <- fluidPage(
fluidRow(
column(
width = 6,
lapply(
X = 1:6,
FUN = function(i) {
sliderInput(inputId = paste0("d", i), label = i, min = 0, max = 10, value = i)
}
)
),
column(
width = 6,
verbatimTextOutput(outputId = "test")
)
)
)
server <- function(input, output){
output$test <- renderPrint({
sapply(grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE), function(x) input[[x]])
})
}
shinyApp(ui = ui, server = server)
answered Oct 14 '16 at 14:11
VictorpVictorp
8,54312138
Is it possible to get the actual values behind the names?
– Centar 15
Oct 14 '16 at 14:21
Yes, check the example
– Victorp
Oct 14 '16 at 14:23
Thanks and amazing work!
– Centar 15
Oct 14 '16 at 14:27
Just one question - how could I address multiple inputs in observeEvent?
– Centar 15
Oct 17 '16 at 9:05
I am currently stuck with observeEvent(c(input$d1,input$d2,input$d3),{})
– Centar 15
Oct 17 '16 at 9:05
|
show 1 more comment
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f40044768%2faddressing-multiple-inputs-in-shiny%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
5
You can use names on input :
grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE)
A working example :
library("shiny")
ui <- fluidPage(
fluidRow(
column(
width = 6,
lapply(
X = 1:6,
FUN = function(i) {
sliderInput(inputId = paste0("d", i), label = i, min = 0, max = 10, value = i)
}
)
),
column(
width = 6,
verbatimTextOutput(outputId = "test")
)
)
)
server <- function(input, output){
output$test <- renderPrint({
sapply(grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE), function(x) input[[x]])
})
}
shinyApp(ui = ui, server = server)
answered Oct 14 '16 at 14:11
VictorpVictorp
8,54312138
Is it possible to get the actual values behind the names?
– Centar 15
Oct 14 '16 at 14:21
Yes, check the example
– Victorp
Oct 14 '16 at 14:23
Thanks and amazing work!
– Centar 15
Oct 14 '16 at 14:27
Just one question - how could I address multiple inputs in observeEvent?
– Centar 15
Oct 17 '16 at 9:05
I am currently stuck with observeEvent(c(input$d1,input$d2,input$d3),{})
– Centar 15
Oct 17 '16 at 9:05
|
show 1 more comment
5
You can use names on input :
grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE)
A working example :
library("shiny")
ui <- fluidPage(
fluidRow(
column(
width = 6,
lapply(
X = 1:6,
FUN = function(i) {
sliderInput(inputId = paste0("d", i), label = i, min = 0, max = 10, value = i)
}
)
),
column(
width = 6,
verbatimTextOutput(outputId = "test")
)
)
)
server <- function(input, output){
output$test <- renderPrint({
sapply(grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE), function(x) input[[x]])
})
}
shinyApp(ui = ui, server = server)
answered Oct 14 '16 at 14:11
VictorpVictorp
8,54312138
Is it possible to get the actual values behind the names?
– Centar 15
Oct 14 '16 at 14:21
Yes, check the example
– Victorp
Oct 14 '16 at 14:23
Thanks and amazing work!
– Centar 15
Oct 14 '16 at 14:27
Just one question - how could I address multiple inputs in observeEvent?
– Centar 15
Oct 17 '16 at 9:05
I am currently stuck with observeEvent(c(input$d1,input$d2,input$d3),{})
– Centar 15
Oct 17 '16 at 9:05
|
show 1 more comment
5
5
5
You can use names on input :
grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE)
A working example :
library("shiny")
ui <- fluidPage(
fluidRow(
column(
width = 6,
lapply(
X = 1:6,
FUN = function(i) {
sliderInput(inputId = paste0("d", i), label = i, min = 0, max = 10, value = i)
}
)
),
column(
width = 6,
verbatimTextOutput(outputId = "test")
)
)
)
server <- function(input, output){
output$test <- renderPrint({
sapply(grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE), function(x) input[[x]])
})
}
shinyApp(ui = ui, server = server)
answered Oct 14 '16 at 14:11
VictorpVictorp
8,54312138
You can use names on input :
grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE)
A working example :
library("shiny")
ui <- fluidPage(
fluidRow(
column(
width = 6,
lapply(
X = 1:6,
FUN = function(i) {
sliderInput(inputId = paste0("d", i), label = i, min = 0, max = 10, value = i)
}
)
),
column(
width = 6,
verbatimTextOutput(outputId = "test")
)
)
)
server <- function(input, output){
output$test <- renderPrint({
sapply(grep(pattern = "d+[[:digit:]]", x = names(input), value = TRUE), function(x) input[[x]])
})
}
shinyApp(ui = ui, server = server)
answered Oct 14 '16 at 14:11
VictorpVictorp
8,54312138
answered Oct 14 '16 at 14:11
VictorpVictorp
8,54312138
answered Oct 14 '16 at 14:11
VictorpVictorp
8,54312138
answered Oct 14 '16 at 14:11
VictorpVictorp
8,54312138
8,54312138
Is it possible to get the actual values behind the names?
– Centar 15
Oct 14 '16 at 14:21
Yes, check the example
– Victorp
Oct 14 '16 at 14:23
Thanks and amazing work!
– Centar 15
Oct 14 '16 at 14:27
Just one question - how could I address multiple inputs in observeEvent?
– Centar 15
Oct 17 '16 at 9:05
I am currently stuck with observeEvent(c(input$d1,input$d2,input$d3),{})
– Centar 15
Oct 17 '16 at 9:05
|
show 1 more comment
Is it possible to get the actual values behind the names?
– Centar 15
Oct 14 '16 at 14:21
Yes, check the example
– Victorp
Oct 14 '16 at 14:23
Thanks and amazing work!
– Centar 15
Oct 14 '16 at 14:27
Just one question - how could I address multiple inputs in observeEvent?
– Centar 15
Oct 17 '16 at 9:05
I am currently stuck with observeEvent(c(input$d1,input$d2,input$d3),{})
– Centar 15
Oct 17 '16 at 9:05
Is it possible to get the actual values behind the names?
– Centar 15
Oct 14 '16 at 14:21
Is it possible to get the actual values behind the names?
– Centar 15
Oct 14 '16 at 14:21
Yes, check the example
– Victorp
Oct 14 '16 at 14:23
Yes, check the example
– Victorp
Oct 14 '16 at 14:23
Thanks and amazing work!
– Centar 15
Oct 14 '16 at 14:27
Thanks and amazing work!
– Centar 15
Oct 14 '16 at 14:27
Just one question - how could I address multiple inputs in observeEvent?
– Centar 15
Oct 17 '16 at 9:05
Just one question - how could I address multiple inputs in observeEvent?
– Centar 15
Oct 17 '16 at 9:05
I am currently stuck with observeEvent(c(input$d1,input$d2,input$d3),{})
– Centar 15
Oct 17 '16 at 9:05
I am currently stuck with observeEvent(c(input$d1,input$d2,input$d3),{})
– Centar 15
Oct 17 '16 at 9:05
|
show 1 more comment
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f40044768%2faddressing-multiple-inputs-in-shiny%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
