add_fun {plotly} | R Documentation |
Useful when you need two or more layers that apply a summary statistic to the original data.
add_fun(p, fun, ...)
p |
a plotly object. |
fun |
a function. Should take a plotly object as input and return a modified plotly object. |
... |
arguments passed to |
txhousing %>% group_by(city) %>% plot_ly(x = ~date, y = ~median) %>% add_lines(alpha = 0.2, name = "Texan Cities") %>% add_fun(function(plot) { plot %>% filter(city == "Houston") %>% add_lines(name = "Houston") }) %>% add_fun(function(plot) { plot %>% filter(city == "San Antonio") %>% add_lines(name = "San Antonio") }) plot_ly(mtcars, x = ~wt, y = ~mpg) %>% add_markers() %>% add_fun(function(p) { p %>% slice(which.max(mpg)) %>% add_annotations("Good mileage") }) %>% add_fun(function(p) { p %>% slice(which.min(mpg)) %>% add_annotations(text = "Bad mileage") })