You don’t need to modify the
plotly object as suggested by @royr2. Just add
label = name as third aesthetic
ggplot(data = d, aes(x = seq, y = value, label = name)) + geom_line() + geom_point()
and the tooltip will display
name in addition to
ggplotly help file says about
The default, “all”, means show all the aesthetic mappings (including the unofficial “text” aesthetic).
So you can use the
label aesthetic as long as you don’t want to use it for
BTW: I’ve also tried
text instead of
ggplot(data = d, aes(x = seq, y = value, text = name)) + geom_line() + geom_point()
geom_path: Each group consists of only one observation. Do you need to adjust the group aesthetic?
and plotted only points. I had to add a dummy group to
geom_line to remove the issue:
ggplot(data = d, aes(x = seq, y = value, text = name)) + geom_line(group = 1) + geom_point()
(But note if you put the dummy group as fourth aesthetic inside
aes() it will appear by default also in the tooltip.)
However, I find the unofficial
text aesthetic can become useful alongside
label if you want to have different strings plotted by
geom_text and shown in the tooltip.
Edit to answer a question in comments:
tooltip parameter to
ggplotly() can be used to control the appearance.
ggplotly(tooltip = NULL) will suppress tooltips at all.
ggplotly(tooltip = c("label")) selects the aesthetics to include in the tooltip.