All Questions
1,851
questions
13
votes
3
answers
7k
views
Leaflet on R: How to create layers and colors for each factor level in dataframe
(Btw, is there another package that would do what I want?)
Here's my dataset:
> head(df)
id groupID lat lon
511 1 277706 -10.89834 -37.05893
377 2 277706 -10.88870 -37.07695
98 ...
- 1,020
13
votes
2
answers
5k
views
leaflet labels overlap fix - leaflet::addMarkers
I am looking for a fix for overlapping labels when using R function leaflet::addMarkers.
long <- c(147.768, 147.768, 147.768,147.768, 147.768, 147.768)
lat <- c(-36.852, -36.852, -36.852,-36....
- 265
13
votes
1
answer
3k
views
Add different legends in different layers on leaflet map in R
library(leaflet)
library(htmltools)
library(htmlwidgets)
library(dplyr)
#
df1 <- data.frame(points=c("p1", "p2"), lat=c(49.47259, 49.48095), long=c(-103.7054, -103.6126), value=c(50.34, 100.25))
...
- 131
12
votes
3
answers
19k
views
street address to geolocation lat/long
I am considering rChart/LeafLet to create a shiny app for housing sales in my county. There are several hundred houses for sale at any given time. Want to map street address-to-geolocation (lat/long) ...
- 1,414
12
votes
1
answer
6k
views
Shiny - how to highlight an object on a leaflet map when selecting a record in a datatable?
Is there a way to highlight a marker or polyline on a leaflet map when selecting (clicking on) the corresponding record in a datatable?
I looked at these questions/threads:
selecting a marker on ...
- 909
12
votes
2
answers
10k
views
How can I plot individual data points in a map using R/ leaflet?
I am trying to show the individual points in a given place, like a map equivalent of dot plot. I tried with leaflet library in R, but I am only able to map the size of the marker to the continuous ...
- 121
12
votes
1
answer
5k
views
Leaflet cluster marker spacing, or how to have smaller groups when zoomed out
Making a leaflet map with clustered markers.
Is there a parameter in markerClusterOptions() that controls the number of groups based on the zoom level? For example, at default zoom my map shows just 3 ...
- 313
12
votes
1
answer
3k
views
Add title to layers control box in Leaflet using R
I am looking to add a title to the layer control box along the lines of "Available layers".
My search has lead me to only one relevant result:
Exact same question using JS. Unclear how to translate
...
- 678
12
votes
2
answers
2k
views
Cache or pre render leaflet map in shiny app
I am trying to map ~8000 polygons using leaflet and run into performance issues.
As I am using the map within a shiny app, I was wondering if its possible to somehow cache or pre-render the map.
Note ...
- 9,846
12
votes
1
answer
5k
views
How to add a text on a leaflet map?
Each day I need to draw a path on a map and add a text like 4, 5 or 8 min. indicating how long it takes by car from the starting point to the destination (see the figure below). I thought it would be ...
user7373139
11
votes
3
answers
14k
views
Change the default position of zoom control in leaflet map of Shiny app
I am using Shiny app to create leaflet map, but want to change the default position of zoom control from topleft to topright.
R leaflet package sets the default position as topleft in the source ...
- 9,736
11
votes
2
answers
9k
views
Can't loop with R's leaflet package to produce multiple maps
New here and relatively new to R also, so please forgive apriori and let me know what I'm doing wrong in this post to avoid annoying others in the future:
I am trying to create a sequence (Sep-1971 ...
- 437
11
votes
2
answers
10k
views
How to use the Google satellite view as tile in leaflet with R
Many questions seem similar to mine, I could not however find a fitting answer for R.
So far, I use the awesome R leaflet (and ggmap) package that way:
library(ggmap)
library(leaflet)
coord <-...
- 1,700
11
votes
2
answers
14k
views
Variable marker size feature in leaflet R
Is there a way to change the marker size in a map based on a certain value?
For example, if I were plotting the population of individual cities and the marker was a circle, the circle would be ...
- 529
11
votes
3
answers
6k
views
Create a gif from a series of Leaflet maps in R
I am looking for an automated method to convert leaflet R Studio plots into image files.
Seems like exporting a leaflet widget to HTML is straightforward (Saving leaflet output as html). However I ...
- 3,861