Plotly choropleth can't read State iso codes

Question

I want to visualize the number of crimes by state using plotly express.
This is the code :

import plotly.express as px

fig = px.choropleth(grouped, locations="Code",
                    color="Incident",
                    hover_name="Code", 
                    animation_frame='Year',
                    scope='usa')
fig.show()

The dataframe itself looks like this:

I only get blank map:

What is the wrong with the code?

Asked By: beridzeg45

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Source

Answer 1

The reason for the lack of color coding is that the United States is not specified in the location mode. please find attached a graph with locationmode=’USA-states’ added. You can find an example in the references. The data was created for your data.

df.head()
Year    Code    State   incident
0   1980    AL  Alabama     1445
1   1980    AK  Alaska  970
2   1980    AZ  Arizona     3092
3   1980    AR  Arkansas    1557
4   1980    CA  California  1614

import plotly.express as px

fig = px.choropleth(grouped,
                    locations='Code',
                    locationmode='USA-states',
                    color='incident',
                    hover_name="Code", 
                    animation_frame='Year',
                    scope="usa")
fig.show()

Answered By: r-beginners

Plotly choropleth can't read State iso codes

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