Pass only specific variables to a shiny app when building a package
I'm building a package which includes my shiny app.
To do this, I build a wrapper around my "shiny::runApp" call, but unfortunatly the shiny app uses the global workspace variables.
I want the wraper function to use the variables i give to the function (and error if not supplemented) and use them for shiny. Here for example, it need x,y and z (which has a default value):
Shiny_wrapper <- function(x,y,z=TRUE){
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
I worked around it by assigning the variables to the global workspace, but I don't think this is the right approach:
Shiny_wrapper <- function(x,y,z=TRUE){
x<<-x
y<<-y
z<<-z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
How do I get my shiny to use the variables I pass to the wrapper?
r shiny rstudio workspace scoping
asked Nov 16 '18 at 8:56
SqueezieSqueezie
10610
add a comment |
I'm building a package which includes my shiny app.
To do this, I build a wrapper around my "shiny::runApp" call, but unfortunatly the shiny app uses the global workspace variables.
I want the wraper function to use the variables i give to the function (and error if not supplemented) and use them for shiny. Here for example, it need x,y and z (which has a default value):
Shiny_wrapper <- function(x,y,z=TRUE){
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
I worked around it by assigning the variables to the global workspace, but I don't think this is the right approach:
Shiny_wrapper <- function(x,y,z=TRUE){
x<<-x
y<<-y
z<<-z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
How do I get my shiny to use the variables I pass to the wrapper?
r shiny rstudio workspace scoping
asked Nov 16 '18 at 8:56
SqueezieSqueezie
10610
add a comment |
I'm building a package which includes my shiny app.
To do this, I build a wrapper around my "shiny::runApp" call, but unfortunatly the shiny app uses the global workspace variables.
I want the wraper function to use the variables i give to the function (and error if not supplemented) and use them for shiny. Here for example, it need x,y and z (which has a default value):
Shiny_wrapper <- function(x,y,z=TRUE){
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
I worked around it by assigning the variables to the global workspace, but I don't think this is the right approach:
Shiny_wrapper <- function(x,y,z=TRUE){
x<<-x
y<<-y
z<<-z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
How do I get my shiny to use the variables I pass to the wrapper?
r shiny rstudio workspace scoping
asked Nov 16 '18 at 8:56
SqueezieSqueezie
10610
I'm building a package which includes my shiny app.
To do this, I build a wrapper around my "shiny::runApp" call, but unfortunatly the shiny app uses the global workspace variables.
I want the wraper function to use the variables i give to the function (and error if not supplemented) and use them for shiny. Here for example, it need x,y and z (which has a default value):
Shiny_wrapper <- function(x,y,z=TRUE){
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
I worked around it by assigning the variables to the global workspace, but I don't think this is the right approach:
Shiny_wrapper <- function(x,y,z=TRUE){
x<<-x
y<<-y
z<<-z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
How do I get my shiny to use the variables I pass to the wrapper?
r shiny rstudio workspace scoping
r shiny rstudio workspace scoping
asked Nov 16 '18 at 8:56
SqueezieSqueezie
10610
asked Nov 16 '18 at 8:56
SqueezieSqueezie
10610
edited Nov 16 '18 at 9:31
Squeezie
asked Nov 16 '18 at 8:56
SqueezieSqueezie
10610
asked Nov 16 '18 at 8:56
SqueezieSqueezie
10610
asked Nov 16 '18 at 8:56
SqueezieSqueezie
10610
10610
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can define an environment in your package, and use it to pass some variables.
PKGENVIR <- new.env(parent=emptyenv())
#' @export
Shiny_wrapper <- function(x,y,z=TRUE){
PKGENVIR$x <- x
PKGENVIR$y <- y
PKGENVIR$z <- z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
And then in the shiny app (in global.R or server.R):
x <- WebFlood:::PKGENVIR$x
answered Nov 16 '18 at 10:36
Stéphane LaurentStéphane Laurent
16.3k75697
This looks good, but I also need it in the UI, since it determines some of the variables there. Any chance to use this for the UI too?
– Squeezie
Nov 16 '18 at 15:31
1
@Squeezie If you useglobal.RI think the variables are available in the UI. No?
– Stéphane Laurent
Nov 16 '18 at 15:36
Works flawless. Thank you!
– Squeezie
Nov 19 '18 at 9:43
add a 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
});
}
});
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%2f53334402%2fpass-only-specific-variables-to-a-shiny-app-when-building-a-package%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
You can define an environment in your package, and use it to pass some variables.
PKGENVIR <- new.env(parent=emptyenv())
#' @export
Shiny_wrapper <- function(x,y,z=TRUE){
PKGENVIR$x <- x
PKGENVIR$y <- y
PKGENVIR$z <- z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
And then in the shiny app (in global.R or server.R):
x <- WebFlood:::PKGENVIR$x
answered Nov 16 '18 at 10:36
Stéphane LaurentStéphane Laurent
16.3k75697
This looks good, but I also need it in the UI, since it determines some of the variables there. Any chance to use this for the UI too?
– Squeezie
Nov 16 '18 at 15:31
1
@Squeezie If you useglobal.RI think the variables are available in the UI. No?
– Stéphane Laurent
Nov 16 '18 at 15:36
Works flawless. Thank you!
– Squeezie
Nov 19 '18 at 9:43
add a comment |
You can define an environment in your package, and use it to pass some variables.
PKGENVIR <- new.env(parent=emptyenv())
#' @export
Shiny_wrapper <- function(x,y,z=TRUE){
PKGENVIR$x <- x
PKGENVIR$y <- y
PKGENVIR$z <- z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
And then in the shiny app (in global.R or server.R):
x <- WebFlood:::PKGENVIR$x
answered Nov 16 '18 at 10:36
Stéphane LaurentStéphane Laurent
16.3k75697
This looks good, but I also need it in the UI, since it determines some of the variables there. Any chance to use this for the UI too?
– Squeezie
Nov 16 '18 at 15:31
1
@Squeezie If you useglobal.RI think the variables are available in the UI. No?
– Stéphane Laurent
Nov 16 '18 at 15:36
Works flawless. Thank you!
– Squeezie
Nov 19 '18 at 9:43
add a comment |
You can define an environment in your package, and use it to pass some variables.
PKGENVIR <- new.env(parent=emptyenv())
#' @export
Shiny_wrapper <- function(x,y,z=TRUE){
PKGENVIR$x <- x
PKGENVIR$y <- y
PKGENVIR$z <- z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
And then in the shiny app (in global.R or server.R):
x <- WebFlood:::PKGENVIR$x
answered Nov 16 '18 at 10:36
Stéphane LaurentStéphane Laurent
16.3k75697
You can define an environment in your package, and use it to pass some variables.
PKGENVIR <- new.env(parent=emptyenv())
#' @export
Shiny_wrapper <- function(x,y,z=TRUE){
PKGENVIR$x <- x
PKGENVIR$y <- y
PKGENVIR$z <- z
shiny::runApp(appDir = system.file("shinyApp", package = "WebFlood"))
}
And then in the shiny app (in global.R or server.R):
x <- WebFlood:::PKGENVIR$x
answered Nov 16 '18 at 10:36
Stéphane LaurentStéphane Laurent
16.3k75697
answered Nov 16 '18 at 10:36
Stéphane LaurentStéphane Laurent
16.3k75697
answered Nov 16 '18 at 10:36
Stéphane LaurentStéphane Laurent
16.3k75697
answered Nov 16 '18 at 10:36
Stéphane LaurentStéphane Laurent
16.3k75697
16.3k75697
This looks good, but I also need it in the UI, since it determines some of the variables there. Any chance to use this for the UI too?
– Squeezie
Nov 16 '18 at 15:31
1
@Squeezie If you useglobal.RI think the variables are available in the UI. No?
– Stéphane Laurent
Nov 16 '18 at 15:36
Works flawless. Thank you!
– Squeezie
Nov 19 '18 at 9:43
add a comment |
This looks good, but I also need it in the UI, since it determines some of the variables there. Any chance to use this for the UI too?
– Squeezie
Nov 16 '18 at 15:31
1
@Squeezie If you useglobal.RI think the variables are available in the UI. No?
– Stéphane Laurent
Nov 16 '18 at 15:36
Works flawless. Thank you!
– Squeezie
Nov 19 '18 at 9:43
This looks good, but I also need it in the UI, since it determines some of the variables there. Any chance to use this for the UI too?
– Squeezie
Nov 16 '18 at 15:31
This looks good, but I also need it in the UI, since it determines some of the variables there. Any chance to use this for the UI too?
– Squeezie
Nov 16 '18 at 15:31
1
1
@Squeezie If you use
global.R I think the variables are available in the UI. No?– Stéphane Laurent
Nov 16 '18 at 15:36
@Squeezie If you use
global.R I think the variables are available in the UI. No?– Stéphane Laurent
Nov 16 '18 at 15:36
Works flawless. Thank you!
– Squeezie
Nov 19 '18 at 9:43
Works flawless. Thank you!
– Squeezie
Nov 19 '18 at 9:43
add a comment |
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.
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%2f53334402%2fpass-only-specific-variables-to-a-shiny-app-when-building-a-package%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
