To create a tooltip using code in ggplot and tidyverse, you need to use the ggplotly
function from the plotly
package. The following steps outline the process:
library(ggplot2)
library(plotly)
p <- ggplot(data = mtcars, aes(x = mpg, y = wt)) +
geom_point()
ggplotly
function:p <- ggplotly(p)
tooltip
function:p <- p %>%
layout(
hoverlabel = list(
namelength = -1
),
tooltip = list(
formatter = "function(variable, value) {
if(variable === 'mpg') {
return('Miles per gallon: ' + value);
} else {
return('Weight: ' + value);
}
}"
)
)
Customize the tooltip formatting by specifying the variables and formatting instructions inside the formatter
function.
Display the plot:
p
The resulting plot will have a tooltip pop-up when you hover over each point, displaying the values of the mpg
and wt
variables.
Asked: 2022-10-25 11:00:00 +0000
Seen: 7 times
Last updated: Sep 30 '22