Description Usage Arguments Examples
Dynamically update legend using Shiny
1 | update_legend(proxy)
|
proxy |
a proxy as returned by |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | ## Not run:
library(shiny)
ui <- fluidPage(
actionButton(
"show",
"Show legend"
),
datamapsOutput("map")
)
server <- function(input, output){
states <- data.frame(st = c("AR", "NY", "CA", "IL", "CO", "MT", "TX"),
val = c(10, 5, 3, 8, 6, 7, 2))
output$map <- renderDatamaps({
states %>%
datamaps(scope = "usa", default = "lightgray") %>%
add_choropleth(st, val)
})
observeEvent(input$update, {
datamapsProxy("map") %>%
update_legend() # update
})
}
shinyApp(ui, server)
## End(Not run)
|
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