我迷失在Vega-lite酱料中。不知道我哪里错了。
我基本上需要两层：

• 所有年份的行（“color”：）
• 本年度（2023年）的单一红线
• 要突出显示的标记：a）最高点，B）最低点和c）同一条2023过滤线上的最新点-带有显示值的文本标签（见下图）

x1c 0d1x的数据
我取得了部分成功，但感觉我在错误的顺序或错误的层编码的东西。2023年的最低温度标记不尊重过滤器转换，文本标签正在受到“颜色”的影响：编码而不是2023年标记的编码。
我把pbix附在这里：TemperatureDEV_pbix

• （注意：这是一个大数据集，我已经切换了“覆盖数据限制”选项）*

对于JSON的混乱，我提前道歉。对于最高和最低的分数，我尝试使用“window”：expression。在另一次尝试中，我能够使用“argmax”获得结束标记：但我无法合并将结束标记和最高/最低分数结合起来。

{
  "data": {"name": "dataset"},
  "encoding": {
    "x": {
      "field": "DayOfYear",
      "type": "temporal",
      "axis": {
        "labels": false,
        "ticks": false,
        "grid": false,
        "title": "Day Of Year"
      }
    },
    "y": {
      "field": "Temp",
      "type": "quantitative",
      "scale": {"zero": false},
      "title": "Temperature"
    },
    "color": {
      "legend": null,
      "field": "Year",
      "type": "quantitative",
      "scale": {
        "reverse": false,
        "range": [
          "#0041C2",
          "#0041C250",
          "#0041C230",
          "#4169E220",
          "#4863A015"
        ]
      }
    }
  },
  
  "layer": [
    
    {
      "mark": {
        "type": "line",
        "interpolate": "monotone",
        "strokeWidth": 1.5
      }
    },
    {
      "transform": [
        {
          "calculate": "(datum.Temp)",
          "as": "2023_temp"
        },
        {
          "filter": {
            "field": "Year",
            "oneOf": ["2023"]
          }
        }
      ],
      "encoding": {
        "x": {
          "field": "DayOfYear",
          "type": "temporal",
          "axis": {
            "labels": false,
            "ticks": false,
            "grid": false,
            "title": "Day Of Year"
          }
        },
        "y": {
          "field": "2023_temp",
          "type": "quantitative",
          "scale": {"zero": false},
          "title": "Temperature"
        }
      },
      "layer": [
        {
          "mark": {
            "type": "line",
            "interpolate": "monotone",
            "stroke": "crimson",
            "strokeWidth": 3
          },
          "encoding": {
            "y": {"field": "2023_temp"}
          }
        },
        {
          "mark": {
            "type": "text",
            "align": "left",
            "dx": 5,
            "size": 15,
            "fontWeight": "bold",
            "color": "red"
          },
          "encoding": {
            "x": {
              "aggregate": "max",
              "field": "DayOfYear"
            },
            "y": {
              "aggregate": {
                "argmax": "DayOfYear"
              },
              "field": "2023_temp"
            },
            "text": {
              "aggregate": {
                "argmax": "DayOfYear"
              },
              "field": "2023_temp",
              "format": ".3~s"
            }
          }
        }
      ]
    },
    {
      "transform": [
        {
          "window": [
            {"op": "rank", "as": "jeff"}
          ],
          "sort": [
            {
              "field": "Temp",
              "order": "descending"
            }
          ]
        },
        {"filter": "datum.jeff ==1"}
      ],
      "mark": {
        "type": "point",
        "shape": "triangle-down",
        "size": 200,
        "yOffset": -8,
        "fill": "red",
        "opacity": 1
      },
      "encoding": {
        "x": {"field": "DayOfYear"},
        "y": {"field": "Temp"}
      }
    },
    {
      "transform": [
        {
          "window": [
            {
              "op": "rank",
              "as": "tempRank"
            }
          ],
          "sort": [
            {
              "field": "Temp",
              "order": "ascending"
            }
          ]
        },
        {
          "filter": "datum.tempRank == 1"
        }
      ],
      "mark": {
        "type": "point",
        "shape": "circle",
        "size": 200,
        "yOffset": -8,
        "fill": "red",
        "opacity": 1,
        "stroke": null
      },
      "encoding": {
        "x": {"field": "DayOfYear"},
        "y": {"field": "Temp"}
      }
    },
    {
      "layer": [
        {
          "transform": [
            {
              "calculate": "(datum.Temp)",
              "as": "1979_temp"
            },
            {
              "filter": "datum.Year == '1979'"
            }
          ],
          "mark": {
            "type": "line",
            "interpolate": "monotone",
            "stroke": "orange",
            "strokeWidth": 3
          },
          "encoding": {
            "y": {"field": "1979_temp"}
          }
        }
      ]
    }
  ]
}

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