My shiny app produces some files that user can download. I have put downloadbutton in the ui for this purpose. However, when the page launches and before any calculation is done, there is nothing to download. I want to prevent user from downloading e...
My shiny app has a sliderInput, but want to replace values as character labels. How could I implement it? Thanks for any suggestions.  This is my example code:  library(shiny) values <- as.factor(c('Label 1', 'Label 3', 'Label...
This is a modified version to the previous question here  In this app (which reflects my real app better) the following situation happens:  I have 2 sets of plots, - the 2 plots of a set show the same traces, just different columns plotted - each plo...
I am running into an issue with datatables and shiny, specifically within a flexdashboard but I think that is irrelevant.   I want to scroll to a given row in the datatable when I click on the corresponding point in a plot. But, the minimal problem I...
Is it possible to have, say, F7 or Q trigger a reactive flow in a Shiny app (in Windows)? This question provides code for alternating tabs with keyboard input, but I am interested in starting reactive flows. For example, a button is 'triggered...
I am developing an application on shiny (ui and server), and I want to implement a map with the hcmap function of the Highchart package. But, when implementing the map I found that there is a dependence of the function hcmap with the site: https://co...
I'm designing a Shiny app to rank people based on a variety of metics. Using the DT sorting feature, I want users to be able to click on any column and sort by it.   It seems natural to use the rownames as the rank; the problem is that these numb...
I'm trying to manually expand a submenu in a sidebar in shiny dashboard. The updateTabItems function allows me to go to the tab, but it does not expand the menu with it.  I am looking for a reproducible answer to the question here:how to manually...
I'm using Json Daives' D3 word cloud in R. I have generated the word cloud but the problem I face is that the shape of the word cloud is not circular. I was going through d3.layout.cloud.js file to try and modify the code to achieve this but...
I need to change bg color of action button in R Shiny after click/press. I am able to change the default color and color on hover but having problem in changing the color after click. when the button is Not clicked - Blue, on Hover - Light Blue, afte...

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