Add multiple lines to a plot_ly graph with add_trace

Question

I found an example to add lines to a plot_ly plot by using the add_trace command. How can I add a list of lines to plot without using add_trace

Answer 1

You can transform your inputs into a long-form data frame first, then plot using the split argument.

library(plotly)
library(reshape2)

my_lines = data.frame(x = 1:10, red = 2:11, blue = 0:9, green = 3:12)
my_lines_long = reshape2::melt(my_lines, id.vars = "x")
fig = plotly::plot_ly(my_lines_long, x = ~x, y = ~value, split = ~variable,
                      marker=list(color=~variable))
fig