克洛普斯地图没有显示我想要什么

Question

threshold_scale = np.linspace(df_value_counts['Count'].min(),
                              df_value_counts['Count'].max(),
                              6, dtype=int)
threshold_scale = threshold_scale.tolist() 
threshold_scale[-1] = threshold_scale[-1] + 1 

sf_map.choropleth(
    geo_data=sf_geo,
    data=df_value_counts,
    columns=['Neighborhood', 'Count'],
    key_on='feature.properties.name',
    fill_color='YlOrRd', 
    fill_opacity=0.7, 
    line_opacity=0.2,
    threshold_scale=threshold_scale,
    legend_name='Crime Rate in San Francisco')
sf_map

我得到的图像是这样的：

但我需要这样的形象：

Answer 1

问题在key_on='feature.properties.name'

应该是key_on='feature.properties.DISTRICT'

查看JSON文件，查看lat/long坐标映射到哪里。 在world map示例中，在JSON文件中它是'name'，但是在san fransico它是'discritt'

# download countries geojson file
!wget  quiet https://cocl.us/sanfran_geojson -O san_francisco_nh.json

print('GeoJSON file downloaded!')

sf_geo = r'san_francisco_nh.json'

^{pr2}$

san fransico choropleth map