Is there a way to use the compare function in high charts when using them in R
As in:
Yes, it's simple. Just define it in your series options or plotOptions. Here is an example code:
library(highcharter)
highchart(type = 'stock') %>%
hc_add_series(data = c(2, 3, 4, 5, 5, 4, 5, 6, 7, 6, 5), compare = 'percent')
And here pure JS showing the same: https://jsfiddle.net/BlackLabel/156yLqw9