how change hover text in plotly

Question

I have this piece of code. How can I please easy change hover text diff to newlabel ? Here is my site http://webcovid19.online/

 ggplotly(
        ggplot(my_data, aes(x=date, y=diff)) + 
        geom_bar(stat='identity',fill='red')  +
        scale_y_continuous(labels = comma) 
    )

yes, I was checking this post already before, but from there is not very clear for me how to do it in my case. — Andrew
– Andrew, Commented Dec 7, 2020 at 12:22

Ben · Accepted Answer · 2020-12-07 16:02:05Z

2

You can customize the text in the tooltip adding text to your aes() in ggplot. Here, you can include both date and diff with whatever text label you want (or just include diff alone). Within ggplotly, you can include tooltip = "text" to refer to this text with hover.

library(plotly)
library(scales)

ggplotly(
  ggplot(my_data, aes(x=date, y=diff, text = paste("Date:", date, "\nnewlabel:", diff))) + 
    geom_bar(stat='identity', fill='red')  +
    scale_y_continuous(labels = comma),
  tooltip = "text"
)

answered Dec 7, 2020 at 16:02

Ben

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4 Comments

Andrew Over a year ago

muchas gracias Ben

Andrew Over a year ago

Hi Ben, Is it possible to change text size of hover text ? I found something here via hoverlabel , but not sure how to do it in my case. stackoverflow.com/questions/38076722/…

Ben Over a year ago

Hi Andrew - if you save your ggplotly() object as gg, then you can change the style such as: style(gg, hoverlabel = list(font = list(size = 24)))...it is tricky with all the lists involved in this, but it is more clearly described here.

Andrew Over a year ago

Excellent ! I use this way ...%>% style (hoverlabel = list(font=list(size=20)))

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