If I want to have two plotly express figures plotted on the same axis. What should I do.
I tried this:
fig = px.scatter_mapbox(points, lat="ycoord", lon="xcoord")
fig.add_trace(px.scatter_mapbox(stations, lat="ycoord", lon="xcoord",))
fig
But it is not working. I have two points dataset and want to see both on the same map.
Hi @shakasom, welcome to the forum! plotly express functions return a figure object (with data and layout). So, to add a trace to your existing figure created by plotly express, you can either
plotly.graph_objects.Scattermapbox object which defines the trace (https://plot.ly/python-api-reference/generated/plotly.graph_objects.Scattermapbox.html) in fig.add_trace
fig.add_trace(px.scatter_mapbox(stations, lat="ycoord", lon="xcoord",).data[0])
Thanks @Emmanuelle. I understood and successfully used the second option. You add the trace with fig.data and by the way I stumbled upon that colors and markers can be changed using fig.data. That was cool.
This is very helpful. However, if I want to change the colors and formatting of ONLY the added_trace, how can I do that? data[0] obviously appears to omit the layout.
For example, I want a red line graph of activity over a month, with blue bar graphs showing the weekend days. How can I do that?
Also, how can I add the second chart’s color(s) to the legend?
You can specify the colors in you px.scatter with
color_discrete_sequence=px.colors.qualitative.Dark2
see here for different color scheme names.
When I did this, it automatically added to the legend.