DarkMatter | A cold , dark & frosty theme | Theme library

Upon load, WebGL points are invisible until we pan or zoom. How can I make them visible immediately on load?

Upon load no points appear:

After pan or zoom points appear:

The code below can be pasted into an Rmd and knit:

leafletProxy doesn't seem to be functional within shinyDashboard. See working example below where choosing different letters should change the circle color. Any insight appreciated. Github issue created here: https://github.com/rstudio/shinydashboard/issues/377

In continuation to my previous post where this was applied on map, I am trying to filter a table in R Shiny using Dropdown input: How to build dynamic Leaflet Map in RShiny?

Code:

I am a beginner in Shiny and trying to build a shiny app where a user can select State location from drop down and then based on those the lat & long should be plotted on the leaflet map.

I have looked at several SO post like Shiny dropdown menu selection to filter a dataframe and shiny tutorials https://shiny.rstudio.com/tutorial/written-tutorial/lesson6/ but nothing has completely worked to make it dynamic based on dropdown selection.

I have also tried using reactive() in my latest code attempt which I have posted below.

starting with shiny apps for sort of first time and getting stuck in this issue:

Error: addCircleMarkers requires non-NULL longitude/latitude values

Where am i suppose to put the data to not get this error?

I have also checked other SO post like: addMarkers requires non-NULL longitude/latitude values in R Shiny

But still not sure what exactly is wrong here.

I am creating a shiny app and trying to get top two fields (Name & location) of the html popup to have a orange background color.

I tried the following code:

My flexdashboard works perfectly in firefox but in chrome or IE, the valueboxes don't render properly and they get hidden behind other page elements. I've posted this on a few other sites but haven't been able to get an answer (sorry for this extra sentence, I'm getting an error saying I haven't provided enough detail and I don't know what else to add).

Here is a reprex of my code (and a pastebin in case this doesn't work well https://pastebin.pl/view/1d1503f4):

I have the shiny app below in which the user uploads a file (here I just put the dt in a reactive function) and from there he can choose which columns he wants to display as selectInput() via a pickerInput(). Then he should be able to click on Update2 and see the map.

The user should also be able to update the depth values by multiplying all of them with the numericInput() value1 and create a new sliderInput() and therefore update the dataframe that is displayed in the table as well. These changes should be applied only when the user clicks on Update2 actionbutton.

When I click on a specific point I get a table below the map with relative data. The issue is that when I do another action,for example update the map or something, this table remains there while I want it to be disappeared and re-appeared when I click on a point again.