Cluster Effect - 'You cannot render this Element ' 'if it is not in a Figure.'

Problem description

Mapping markers for charter schools across the United States has worked. I’m now trying to apply a cluster method to this. The code below runs without an error. When I add a cell and run ‘mappo’ to see if the cluster effect has worked. I get the error mentioned in the last part of this post.

#MAIN METHOD THAT RETURNS CHOROPLETH MAP WITH POINTS

charterdropped.crs = sdshape.crs
charterdropped = charterdropped.to_crs(epsg='4326')
cjson = charterdropped.to_json()
mappo = folium.Map([37.7556, -122.4399], zoom_start = 7)

mappo.choropleth(
    geo_data=districtchanged,
    data=districtchanged,
    columns=['FIPS', '% Total Population: White Alone'],
    key_on='feature.properties.FIPS',
    legend_name='White people', 
    fill_color='YlGn',
    fill_opacity=0.4,
    highlight=True) 
points = folium.features.GeoJson(cjson)
mappo.add_child(points)


#Cluster Method

marker_cluster = MarkerCluster().add_to(mappo)
for each in charterdropped[0:len(charterdropped)].iterrows():
    folium.Marker(
            location=[each[1]['latitude'], each[1]['longitude']],
            popup=folium.Popup(
                            folium.IFrame(
                                html=each[1]['SCH_NAME'])
                
                                         
            ).add_to(marker_cluster))
    

Output of ``folium.version

assert isinstance(figure, Figure), ('You cannot render this Element ' 'if it is not in a Figure.')

[Conengmo]

Good to hear your problem is solved!

[sarahsolieman]

Thanks for your suggestions @Conengmo. I figured out a solution. Something that was important for me to do was switch the ordering of latitude and longitude. (x,y) --> (y,x). I believe perhaps maybe they were mislabeled in data handling.

locations = charterdroppedlol[['longitude','latitude']]
locationlist = locations.values.tolist()
locationlist 


mapclus = folium.Map(location=[37.7556, -122.4399], zoom_start=7)
marker_cluster = MarkerCluster().add_to(mapclus)

for point in range(0, len(locationlist)):
    folium.Marker(locationlist[point], popup="hi").add_to(marker_cluster)
mapclus.save('clustercalifornia.html')