Animate map in R with flyer and xts
I would like to build an animated map with a time cursor in R.
I have a time series (xts) that I would like to represent on a map.
library(xts)
library(leaflet)
date<-seq(as.POSIXct("2015-01-01"), as.POSIXct("2015-01-10"), by=86400)
a<-xts(1:10,order.by=date)
b<-xts(5:14,order.by=date)
df = data.frame(Lat = 1:10, Long = rnorm(10),Id=letters[1:10])
leaflet() %>% addCircles(data = df,popup =df$Id)
#popup =paste(df$Id, xts value) time cursor on the map
Is there a way to do this with a flyer package? I have not tried the rmaps package yet.
thank
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1 answer
There is a simple example
Library:
library(shiny) library(xts) library(leaflet) library(dplyr)
Data:
date<-seq(as.Date("2015-01-01"), as.Date("2015-01-10"), by="day")
a<-xts(1:10,order.by=date)
df = data.frame(Lat = rnorm(1)+10, Long = rnorm(1),Id=a)
data_a<-data.frame(a)
data_a1<-data_a %>%
mutate("Lat" =as.numeric(df[1,1]),"Long"=as.numeric(df[2,1]),"Date"=rownames(data_a))
shinyapp:
ui <- fluidPage(
sliderInput("time", "date",min(date),
max(date),
value = max(date),
step=1,
animate=T),
leafletOutput("mymap")
)
server <- function(input, output, session) {
points <- reactive({
data_a1 %>%
filter(Date==input$time)
})
output$mymap <- renderLeaflet({
leaflet() %>%
addMarkers(data = points(),popup=as.character(points()$a))
})
}
shinyApp(ui, server)
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