Change color palette in e_visual_map from echart4r-CodePudding

Is it possible to change the colour palette using the function e_visual_map from the package echart4r.

The default is the following.

library(tidyverse)
library(echarts4r)
data(mtcars)

mtcars |>
  e_charts(mpg) |>
  e_scatter(wt, qsec, scale = e_scale) |>
  e_visual_map(qsec, scale = e_scale)

For example, is it possible to use the Viridis colour palette from the package ggplot2?

CodePudding user response：

You can add color as an additional argument, then you can input viridis as the parameter. Or you can put in a list of colors (e.g., color = c("#8DD3C7", "#FFFFB3", "#BEBADA", "#FB8072")).

library(tidyverse)
library(echarts4r)
library(viridis)

mtcars |>
    e_charts(mpg) |>
    e_scatter(wt, qsec, scale = e_scale) |>
    e_visual_map(qsec, scale = e_scale, color = viridis(5))