How to create color functions for mappers in lealet?

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How to create color functions for mappers in lealet?

Sep 24 in Data Analytics by anonymous
• 3,290 points
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1 answer to this question.

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Hey,

Create a function using colorNumeric.Factor/bins. Then call the function using field for color inside marker function.

Syntax of color* functions: color*(palette, domain,reverse,....)

Ex: 

pal <- colorNumeric(c("green","yellow",,"red"), domain = NULL,reverse = TRUE)
leaflet(quakes) %>% addTiles() %>%
  addCircleMarkers(
    color = pal(sort(ozone$median)),
    stroke = FALSE, fillOpacity = 0.5,
    radius = 2.2
  )
answered Sep 24 by anonymous
• 32,260 points

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