Multi-quantitative tracks

MultiQuantitativeTrack config#

Example MultiQuantitativeTrack config:

{
  "type": "MultiQuantitativeTrack",
  "trackId": "microarray_multi",
  "name": "MultiWig",
  "category": ["ENCODE bigWigs"],
  "assemblyNames": ["hg19"],
  "adapter": {
    "type": "MultiWiggleAdapter",
    "bigWigs": [
      "https://www.encodeproject.org/files/ENCFF055ZII/@@download/ENCFF055ZII.bigWig",
      "https://www.encodeproject.org/files/ENCFF826HEW/@@download/ENCFF826HEW.bigWig",
      "https://www.encodeproject.org/files/ENCFF858LIM/@@download/ENCFF858LIM.bigWig",
      "https://www.encodeproject.org/files/ENCFF425TNW/@@download/ENCFF425TNW.bigWig",
      "https://www.encodeproject.org/files/ENCFF207RBY/@@download/ENCFF207RBY.bigWig",
      "https://www.encodeproject.org/files/ENCFF289CTN/@@download/ENCFF289CTN.bigWig",
      "https://www.encodeproject.org/files/ENCFF884IEG/@@download/ENCFF884IEG.bigWig",
      "https://www.encodeproject.org/files/ENCFF495SBQ/@@download/ENCFF495SBQ.bigWig",
      "https://www.encodeproject.org/files/ENCFF959EZF/@@download/ENCFF959EZF.bigWig",
      "https://www.encodeproject.org/files/ENCFF926YZX/@@download/ENCFF926YZX.bigWig",
      "https://www.encodeproject.org/files/ENCFF269CHA/@@download/ENCFF269CHA.bigWig",
      "https://www.encodeproject.org/files/ENCFF857KTJ/@@download/ENCFF857KTJ.bigWig",
      "https://www.encodeproject.org/files/ENCFF109KCQ/@@download/ENCFF109KCQ.bigWig",
      "https://www.encodeproject.org/files/ENCFF942TZX/@@download/ENCFF942TZX.bigWig",
      "https://www.encodeproject.org/files/ENCFF140HPM/@@download/ENCFF140HPM.bigWig",
      "https://www.encodeproject.org/files/ENCFF305JRR/@@download/ENCFF305JRR.bigWig",
      "https://www.encodeproject.org/files/ENCFF739FDJ/@@download/ENCFF739FDJ.bigWig",
      "https://www.encodeproject.org/files/ENCFF518OJP/@@download/ENCFF518OJP.bigWig",
      "https://www.encodeproject.org/files/ENCFF810HHS/@@download/ENCFF810HHS.bigWig",
      "https://www.encodeproject.org/files/ENCFF939JSB/@@download/ENCFF939JSB.bigWig",
      "https://www.encodeproject.org/files/ENCFF041TAK/@@download/ENCFF041TAK.bigWig"
    ]
  }
}

The bigWigs array only works with absolute URLs. For relative URLs or per-subtrack options like color and grouping, use subadapters instead.

The source field#

Each subtrack has a source identifier used as its label in the UI and carried on features as feature.source. When using bigWigs, source is auto-derived from the URL filename. When using subadapters, set it explicitly. name is an alias — source takes priority if both are set.

Since features carry feature.source, you can reference it in jexl color callbacks, e.g. jexl:feature.source=='k1'?'red':'blue'.

The subadapters slot also supports:

• color - default subtrack color
• group - grouping label for organizing subtracks

Example:

{
  "type": "MultiQuantitativeTrack",
  "trackId": "microarray_multi_groups",
  "name": "MultiWig (groups)",
  "category": ["ENCODE bigWigs"],
  "assemblyNames": ["hg19"],
  "adapter": {
    "type": "MultiWiggleAdapter",
    "subadapters": [
      {
        "type": "BigWigAdapter",
        "source": "k1",
        "color": "red",
        "uri": "https://www.encodeproject.org/files/ENCFF055ZII/@@download/ENCFF055ZII.bigWig",
        "group": "group1"
      },
      {
        "type": "BigWigAdapter",
        "source": "k2",
        "color": "blue",
        "uri": "https://www.encodeproject.org/files/ENCFF826HEW/@@download/ENCFF826HEW.bigWig",
        "group": "group2"
      }
    ]
  }
}