All Questions
716
questions
1
vote
1
answer
25
views
How to update fillColor to selected input in shiny and leaflet map
I am having a difficult time transitioning my map from static to reactive so a user can select what data they want to look at. I am pretty new to R so please bare with me but I think I figured out how ...
- 25
0
votes
2
answers
36
views
Updating selectInput in shiny app based on user selection
I have a simple shiny app with 2 select input :
shinyApp(
ui = fluidPage(
selectInput("Params1", "Parameter 1",choices=c('Significant wave height [m]' = 'Significant wave ...
- 2,142
1
vote
2
answers
42
views
How to change the color of a RadioButton option depending on whether it is the correct choice?
I am currently developing an R Shiny App to train some new starters at our company in R. Using Shiny, I want to include multiple choice questions and options to test people on certain questions. For ...
- 13
1
vote
1
answer
57
views
How can I display my textOutput to all tabPanel
I'm working on a shiny app and having an issue with my code. I've got a reactive text that changes based on a selectInput. For example if I choose "Character 1" in my selectInput I will have ...
0
votes
0
answers
36
views
How to load datasets in Dataiku Shiny based on partitions?
Trying to get an hold on how to skip some calculation steps since the flow zone in dataiku is working and I want to instantly have a certain dataset based on the partition "met_station_id_list&...
- 163
1
vote
1
answer
69
views
Reload Data from database in shiny app by clicking action button multiple times
I want to display data from a sql database in a shiny app.
There is always new data coming, so it is convenient to click on the action button to display the newest data.
here is an example of how I do ...
- 157
0
votes
1
answer
69
views
Create reactive named lists [duplicate]
I'm creating a shiny app where I would like to allow the user to give the value in a list a reactive name. In the minimal example below I would like to have the dropdown menu value ("example1&...
- 39.8k
0
votes
1
answer
26
views
Dynamically plotting in tabsetPanels in shiny R
I’m working on a Shiny app where I need to dynamically plot data in a tabPanel of a tabsetPanel. I’ve been trying to adapt the example from this StackOverflow answer , which demonstrates how to ...
- 97
0
votes
1
answer
23
views
observeEvent to reset a reactiveVal DF to empty after each click
Here's the situation:
I am building an app that populates a chart after some inputs are selected and an actionButton is clicked. However, the behavior I was expecting is that each time you click the ...
- 164
0
votes
1
answer
31
views
Calculating correlation coefficient from user selected values
As part of a larger Shiny app, I'm trying to filter (using the diamonds dataset as an example) by price to create a reactive data frame. Using this data frame, I would like to correlate price with a ...
0
votes
1
answer
32
views
Displaying images reactively
Please assist with the means of displaying images on the shiny app reactively.
But first I struggled even displaying a single image
Tried the following
ui <- fluidPage(
sidebarLayout(
sidebarPanel(
...
0
votes
0
answers
42
views
Enable/Disable action button if a reactive object that lists files in folder is not NULL
I have a Shiny application where there is an action button that must be disabled (using the package shinyjs) in the case that a reactive object, created in the server and used to list files in ...
- 605
0
votes
0
answers
15
views
Using values from sliderInput to reactively recalculate an equation and display the recalculated number as text
I am attempting to develop a Shiny page where folks can view the 22 metrics used to calculate an index via sliderInputs, see the already calculated result of the index, adjust the sliders to ...
0
votes
1
answer
40
views
Cannot update label size and legend title automatically in Shiny
Recently, I built a small simple shiny website which just has a visualization function.
The aim is to visualize scatter data and adjust different parameters.
But I met a problem that the X and Y ...
- 396
0
votes
1
answer
41
views
Exporting reactive ggplot and rhandsontable as Excel workbook via Download Button in R Shiny
I'm trying to create a small application where you paste some x-y data into a table that are then displayed and fitted (the actual app will do further calculations but that's working so I cut it off ...
