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Questions tagged [r-leaflet]

This R package makes it easy to integrate and control the open-source JavaScript Leaflet software in R.

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Shiny, Event reactive, running several functions

I am new in shiny, at the moment I am trying to set up a code where I can calculate activity clusters (through DBSCAN package) based on input variables: "eps" (minimum distances between points to be part of a cluster), "minpts" (minimum number of…
jorge
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How do I make a reactive palette, which changes the colour of polygons on a map, when a different variable is selected in Shiny?

This is my first question so I apologise if its not up to scratch, but I'm stuck on an issue and I really need help please. I'm trying to create a shiny app, which will allow you to select a species from a drop down menu, thereby changing the…
Ben Raby
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Leaflet maps not working in R Studio after R 4.0.0 upgrade

I updated my computer the other day (R, R Tools, and RStudio), and leaflet stopped working. When I run this example in the RGUI it's very slow, but eventually it opens a web page in a browser. When I run it in R Studio it's very slow, eventually…
geneorama
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React Leaflet - Amend X/Y LatLng to work from center rather than bottom left using CRS

Hey has anybody managed to change the X/Y axis start points in react leaflet? I need my co-ordinates to work from the middle of the map rather than the bottom left using CRS. Below is what I have so far, any point in the right direction would be…
BA1995
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Custom palette with 2 colors and custom breakpoints in R leaflet - continuous variable

I am trying to create a custom palette with 2 colors(Red and Green) and custom breakpoints for my leaflet map. Currently I am using a single reds color palette.Mymap Which I have generated using colornumeric as pal2 <- colorNumeric(palette = "Reds",…
user12907431
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R-Leaflet Map - Help me to Combine 2 legends in R leaflet

I making an R Leaflet Map and I have 2 legend. how to combine them? thanks
Johan Hadi
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Is there any way that to display zip codes on the face of an interactive map created with R leaflet package?

I mapped overdose deaths of Philadelphia by zip code: https://6abc.com/5978005/ I wanted to display zip codes on the face of the map but couldn't figure out how to. This is what I wanted my map to look like: Philadelphia Overdose Deaths Map Is there…
Yun Choi
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Can't filter markers in RShiny based on user input

I'm having a problem with my RShiny app not filtering the markers on the Leaflet map. What am I doing wrong? I'm having troubles identifying why this is happening. I did the same thing but in other ways, for example, use a switch based on input$df…
zueyl
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Shiny selectInput doesn't react to tab selection

Here is my problem, I have a couple of tabs and I'm trying to update a map according to a choice in the selectInput() function. The select option in inputSelect() is activated and points to Los Angeles which should activate the ObserveEvent() or…
Pablo Armendariz
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How to add hyperlink into a popup in leaflet? (urls stored in table)

I have a table in which one of the columns is website urls, how do I add hyperlink with these urls in a popup in leaflet? here is my code: content <- paste(sep = "\n", my_table$names, …
LinearFragility
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RPubs displays wrong colors for Leaflet heatmap

I am working on a leaflet heatmap in R. Everything works fine (see image 1), but when I publish it on RPubs, the color gradient of the density function is replaced by a black "cloudy" gradient (see image 2). I know that this was an issue in other…
Boombardeiro
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updatetabsetPanel from a leaflet popup link in R Shiny

Struggling R shiny beginner here. I'm having trouble grasping how to switch tabs in my two-tab sidebar (people | places) when a link in a label on a map in the main panel is clicked. I take it from looking at other, somewhat similar questions that…
Megan Cytron
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Assigning "parent" color palettes in R

I'm working on creating a map using Leaflet. You'll notice in the first step, I break out each county into four different "regions". I then join it on another geo file of smaller territories within each customized "region." What if I wanted each…
user12061051
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Specify point radius using Java Script htmlwidget in R leaflet

I am working from (very helpful) code provided here https://github.com/timelyportfolio/leaftime/blob/master/inst/examples/example_leaftime.R to build a timeseries map using leaflet in R. I can't seem to figure out how to define the radius of each…
nrcombs
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R: adding title to a leaflet map and Saving as PDF

What is please the simples way to add title to a leaflet map object? I would like to add title to a leaflet map that I have and also wanted to ask about saving as pdf. When saving as pdf (in example) the map if cut off and there is a lot of empty…
Petr
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