View source: R/interact_tooltip.R
add_tooltip | R Documentation |
Add tooltips to a plot.
add_tooltip(vis, html, on = c("hover", "click"))
vis |
Visualisation to add tooltips to. |
html |
A function that takes a single argument as input. This argument
will be a list containing the data in the mark currently under the
mouse. It should return a string containing HTML or |
on |
Should tooltips appear on hover, or on click? |
## Run these examples only in interactive R sessions
if (interactive()) {
all_values <- function(x) {
if(is.null(x)) return(NULL)
paste0(names(x), ": ", format(x), collapse = "<br />")
}
base <- mtcars %>% ggvis(x = ~wt, y = ~mpg) %>%
layer_points()
base %>% add_tooltip(all_values, "hover")
base %>% add_tooltip(all_values, "click")
# The data sent from client to the server contains only the data columns that
# are used in the plot. If you want to get other columns of data, you should
# to use a key to line up the item from the plot with a row in the data.
mtc <- mtcars
mtc$id <- 1:nrow(mtc) # Add an id column to use ask the key
all_values <- function(x) {
if(is.null(x)) return(NULL)
row <- mtc[mtc$id == x$id, ]
paste0(names(row), ": ", format(row), collapse = "<br />")
}
mtc %>% ggvis(x = ~wt, y = ~mpg, key := ~id) %>%
layer_points() %>%
add_tooltip(all_values, "hover")
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.