r - add multiple lines to a plot_ly graph with add_trace -

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i found example add lines plot_ly plot using add_trace command. how can add list of lines plot without using add_trace multiple times?

i tried for loop add traces doesn't work expected.

my_lines <- list(   list(x=1:10, y=2:11, color='red'),   list(x=1:10, y=0:9, color='blue'),   list(x=1:10, y=3:12, color='green') ) p <- plot_ly() p for(line in my_lines) {  p <- add_trace(p, y=line[['y']], x=line[['x']],                   marker=list(color=line[['color']])) } p

but example works expected.

p <- plot_ly() p <- add_trace(p, y=my_lines[[1]][['y']], x=my_lines[[1]][['x']],                marker=list(color=my_lines[[1]][['color']])) p <- add_trace(p, y=my_lines[[2]][['y']], x=my_lines[[2]][['x']],                marker=list(color=my_lines[[2]][['color']])) p <- add_trace(p, y=my_lines[[3]][['y']], x=my_lines[[3]][['x']],                marker=list(color=my_lines[[3]][['color']])) p

hope can give me hint on this.

you need set evaluate = true force evalutation / avoid lazy evaluation

p <- plot_ly() p for(line in my_lines) {  p <- add_trace(p, y=line[['y']], x=line[['x']],                   marker=list(color=line[['color']]),                  evaluate = true) } p

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