The reactive tag refers to a variable type and environment used inside Shiny applications based in the R programming language. Reactive elements are dynamic and changing over time usually due to user input to the Shiny application. This tag should be used with questions and errors regarding how to refresh, update, assign, and access user inputs into Shiny. The reactive tag is to be used in conjunction with the r and shiny tag.
Questions tagged [reactive]
2049 questions
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Update multiple related selectizeInput() controlling a reactive dataset filtered through these inputs choices
I have a simple shiny app that loads a dataset when I launch it. The app has different selectizeInput() where the user can choose one or more values of different variables with which he/she can filter the dataset. In the following reproducible…
nd091680
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Vue does not update render on update to props
I'm currently writing a Vue application where I allow the editing of some components by the end user. The rendered structure is currently generated from a tree-like data structure and passed down through component props, and I have written the code…
Jordan Austin
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how to save basename of ShinyFiles directory input to pass into a function
How can I obtain just the selected directory name from a ShinyFiles directory button? I looked at this post, another SO question, and got it to show the full path in a verbatimTextOutput, but I just want the directory name. I tried printing out to…
Spencer Trinh
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Create reactive data frame dependent on selected tabItem
In my shinyApp i have a Data Frame which i want it to be reactive dependent on the Tab that is selected.
I tried the following, but it does not work. Any other ideas?
library(shiny)
library(shinydashboard)
library(tidyverse)
data =…
user12967444
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Angular Inside ngFor how to set [disabled] not working with multiple conditions
I have ngFor inside i am trying [disabled] on button base on multiple conditions how can i do any one suggest me please. i don't know how to work [disabled] on inside of ngFor with multiple conditions. i have try both way…
Darshan Malani
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How to I get the value of a Mono property without calling block()?
I use this method to save or update an existing recipe in my DB, the incoming object might not have an id property if the recipe is new. After saving the command to the db I need to redirect the user to the page that displays the recipe, in order to…
Mouhieddine
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How to change the y in flexdashboard selectInput
I'm trying to make a flexdashboard using IMDb data, that has an interactive jitter plot where you can change the x and y for visualizing hierarchical clustering result. The code that I've already made can change only the x and number of k. I think I…
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My html reactive form does not appear. Please see below my code
After I click on see movie button I want to redirect to login page, but my login page does not appear. Where is the problem ?
My movie-list.component.html
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