elasticsearch - 比较 Kibana 地图中两个字段的平均值

Question

我在 Elasticsearch 中有一个索引，其映射如下：

{
  "mappings": {
    "_doc": {
      "properties": {
        "@timestamp": {
          "type": "date"
        },
        "@version": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "action_type": {
          "type": "keyword"
        },
        "bts": {
          "properties": {
            "cell": {
              "type": "integer"
            },
            "city": {
              "type": "keyword"
            },
            "estimated_geo": {
              "type": "geo_point"
            },
            "geo": {
              "type": "geo_point"
            },
            "id": {
              "type": "keyword"
            },
            "lac": {
              "type": "integer"
            },
            "province": {
              "type": "keyword"
            }
          }
        },
        "download_result": {
          "properties": {
            "download_size": {
              "type": "integer"
            },
            "download_time": {
              "type": "integer"
            },
            "download_url": {
              "type": "keyword"
            }
          }
        },
        "get_result": {
          "properties": {
            "get_size": {
              "type": "integer"
            },
            "get_time": {
              "type": "integer"
            },
            "get_url": {
              "type": "keyword"
            }
          }
        },
        "ip": {
          "type": "ip"
        },
        "isp": {
          "type": "keyword"
        },
        "location": {
          "properties": {
            "city": {
              "type": "keyword"
            },
            "geo": {
              "type": "geo_point"
            },
            "province": {
              "type": "keyword"
            }
          }
        },
        "mobile_operator": {
          "type": "keyword"
        },
        "mobile_type_network": {
          "type": "keyword"
        },
        "network_type": {
          "type": "keyword"
        },
        "ping_result": {
          "properties": {
            "ping_ip": {
              "type": "ip"
            },
            "ping_loss": {
              "type": "float"
            },
            "ping_time": {
              "type": "integer"
            }
          }
        },
        "signal_level": {
          "type": "integer"
        },
        "timestamp": {
          "type": "date"
        },
        "upload_result": {
          "properties": {
            "upload_size": {
              "type": "integer"
            },
            "upload_time": {
              "type": "integer"
            },
            "upload_url": {
              "type": "keyword"
            }
          }
        },
        "user_id": {
          "type": "keyword"
        },
        "user_session": {
          "type": "keyword"
        }
      }
    }
  }
}

还有一个文件，我可以根据城市、地区等在我的地图上显示一些数据。现在，如果大于geojson，我想将城市涂成蓝色（这就像美国各州的选举结果图一样）。最后，我将有一张地图，它的所有城市都只有两种颜色：基于平均比较的蓝色或红色。这可以通过 kibana 获得吗？我该如何部署它？avg(some_field)avg(another_field)