Plotly express style marker outline

📊 Plotly Python
1

Hello,

I can’t find a way to style markers in the scatterplots created by

px.scatter

and

px.scatter_matrix.

Found on this forum that adding this can activate markers and lines:

fig.data[0].update(mode=‘markers+lines’)

but Is there a way to style them?

Thank you!

2

What kind of styling are you wanting to apply?

3

I’d like to add border to markers. Do you have any suggestion to do that? Thanks!

4

So today you’ll have to do this:

fig = px.scatter(iris, x="sepal_length", y="sepal_width", color="species")
for t in fig.data:
    t.marker.line.width = 1
    t.marker.line.color = "black"
fig

but with the next release of plotly (3.9.0) in the next few days, it’ll become as easy as this (long) single statement:

px.scatter(iris, x="sepal_length", y="sepal_width", color="species")\
    .update_traces(dict(marker_line_width=1, marker_line_color="black"))
1 Like
5

Thank you so much for your quick reply! It worked, and im glad it will be streamlined in a few days!

6

plotly 3.9.0 is out, which supports this new syntax :slight_smile:

1 Like