我已经使用Folium中的Choropleth和Cluster标记图工作了一段时间(很棒)。我的问题是,是否可以将它们组合在一个图中,这样我就可以看到一个变量对另一个变量有多大影响。我可以使这两种地图类型都可以单独工作,所以在那里没有问题。到目前为止,这是我尝试将两者结合的代码:
import pandas as pd
import folium
from folium.plugins import MarkerCluster
input_filename="input_filename.csv"
df = pd.read_csv(input_filename,encoding='utf8')
geo = 'blah.json'
comparison = 'comparison.csv'
comparison_data = pd.read_csv(comparison)
m = folium.Map(location=[Lat,Lon], zoom_start=12)
folium.Choropleth(
geo_data=geo,
name='choropleth',
data=comparison_data,
columns=['col1','col2'],
key_on='feature.properties.ID',
fill_color='OrRd',
fill_opacity=0.5,
line_opacity=0.5,
legend_name='Blah (%)'
).add_to(m)
folium.LayerControl().add_to(m)
marker_cluster = MarkerCluster().add_to(m)
for row in df.itertuples():
folium.Marker(location=[row.Lat,row.Lon],popup=row.Postcode).add_to(marker_cluster)
m
它会产生choropleth,但也不会对聚类标记进行分层。值得一提的是,群集标记在单独显示时不会出现问题,但是在Jupyter笔记本中无法显示,但我通过将文件另存为html来解决了该问题,然后就可以对其进行查看了。
好,所以我解决了,真的很高兴!解决方案是先进行标记聚类,然后再进行Choropleth:
import pandas as pd
import folium
from folium.plugins import MarkerCluster
m = folium.Map(location=[Lat,Lon], zoom_start=12)
input_filename="input_filename.csv"
df = pd.read_csv(input_filename,encoding='utf8')
geo = 'blah.json'
comparison = 'comparison.csv'
comparison_data = pd.read_csv(comparison)
folium.LayerControl().add_to(m)
marker_cluster = MarkerCluster().add_to(m)
for row in df.itertuples():
folium.Marker(location=[row.Lat,row.Lon],popup=row.Postcode).add_to(marker_cluster)
folium.Choropleth(
geo_data=geo,
name='choropleth',
data=comparison_data,
columns=['col1','col2'],
key_on='feature.properties.ID',
fill_color='OrRd',
fill_opacity=0.5,
line_opacity=0.5,
legend_name='Blah (%)'
).add_to(m)
m