All Questions
655
questions
1
vote
1
answer
26
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
1
vote
1
answer
25
views
How to assign a leaflet layer to a group, when that layer is created by an extension of leaflet?
This R code creates a leaflet map with two base layers. The user can toggle between the two layers.
leaflet() |>
addTiles(group = "group 1") |>
addProviderTiles(provider = ...
- 1,676
1
vote
1
answer
23
views
How to add markers in a Leaflet minimap?
I have created an application in Shiny which allows for selecting a place and then displays a datatable with information and a marker at the corresponding position in the map. The marker is set in ...
- 97
-1
votes
0
answers
20
views
`colorNumeric()`: ! Wasn't able to determine range of domain
I am trying to read a shapefile and assign colors using leaflet colorNumeric() to variable V4 which are numeric but discontinuous. It has values 1 to 16 and then 74 to 95 with some missing values in ...
- 508
1
vote
1
answer
25
views
How can I use the AllMaps leaflet plugin with R?
Leaflet allows one to use custom map tile URLs. Here's an example from the docs.
library(leaflet)
leaflet() %>% addTiles() %>% setView(-93.65, 42.0285, zoom = 4) %>%
addWMSTiles(
"...
- 1,676
1
vote
1
answer
39
views
Table Display based on filter selection and custom polyline click
I have a shapefile with segments of varying lengths. For each segment, I have attributes including segment id, year, time period, and other variables like traffic volume. Right now a user is able to ...
- 1,287
2
votes
0
answers
31
views
How to dynamically update Leaflet markers with custom icons based on slider input?
I am working on a Shiny app where I want to display a Leaflet map with markers that have custom icons. The icons should change based on a year selected using a slider input. Specifically, markers ...
1
vote
1
answer
24
views
How to Separate Lines for Labels?
I have the following code in R Shiny for a data dashboard I'm working on, but I want the "Median Carbon Level" to be on a seperate line than the "Percent Increase from 2015" ...
0
votes
0
answers
14
views
R Markdown doesn't plot leaflet map in Word document
I'm working on a Word document with a leaflet maps. In RStudio the leaflet maps works good, but when I Knit my Word document with Rmarkdown, no map appears in Word. I recently change my computer and ...
0
votes
1
answer
65
views
Connecting R Leaflet to esri vector tile service
I'm building a Shiny leaflet application that I want to use a ESRI vector tile map from my organization for. I can see that leaflet connects to it as the attribution is accurate. However the tiles ...
- 416
0
votes
0
answers
55
views
Why are my leaflet points stuck to the map edge?
I try to plot transit stops on a leaflet map, indicating local clustering ("LISA"), based on Moran's I. The map is embedded in an R markdown file.
I've successfully done that with polygon ...
- 23
0
votes
1
answer
39
views
The position of map (leaflet) not updating from dropdown user input R
I have a global variable called map_status, selectedDropdownData.
mapStatus <<- list(map_lng = -110.9747, map_lat = 32.2226, map_zoom = 12)
selectedDropdownData <<- NULL
I currently ...
- 23
1
vote
1
answer
40
views
Click on a subregion and autoscale zoom to fit the subregion
I'm developing an R Shiny app and want to have an interactive map, where the user clicks on a region (or subregion), and the map automatically zooms and scales the view to fit the selected region. ...
- 11
0
votes
1
answer
52
views
Problem with deploying shiny app/leaflet to shinyapps.io
I am trying to deploy a very simple app to Shinyapps.io.
My app is the following, and the structure of the folder is mines_peru/app.R (the file below) and mines_peru/data/clean_active_mines.RDS.
...
- 55
1
vote
0
answers
36
views
Render Leaflet Map Layers Asynchronously in R Shiny
I am trying to reduce the loading time of a Shiny App that renders a map via the Leaflet package utilizing large sf object datasets. Much of the slow loading time is attributable to the actual ...
- 11