How to custom the hover text of a box plot

[AIMPED]

I think you might have a slight misconception of how the hovertemplate works.

You can’t just use f- strings to show variables in the hover. The data you want to show needs (I think) to be self contained within the figure. Like this example:

Customize hovertemplate in a px.Imshow Image

Hi @FMonzon I don’t know how to do this on the fly (in the browser using JS) but you could add customdata to your image and use this information in the hovertemplate: import numpy as np import plotly.express as px import string import plotly.graph_objects as go categories = 10 # create dictionary for mapping of values --> labels convert = {value: label for value, label in zip(range(categories), string.ascii_lowercase[:categories] )} # create an image arr = np.random.randint(0, categories, si…