{
  "$schema": "urn:prism:schema:v1:spec",
  "title": "Score and latency, repeated",
  "data": {
    "name": "samples",
    "values": [
      {"day": "2026-01-01", "score": 0.42, "latency_ms": 120},
      {"day": "2026-01-02", "score": 0.55, "latency_ms": 95},
      {"day": "2026-01-03", "score": 0.49, "latency_ms": 110}
    ]
  },
  "repeat": {
    "row": ["score", "latency_ms"]
  },
  "spec": {
    "$schema": "urn:prism:schema:v1:spec",
    "mark": "line",
    "encoding": {
      "x": {"field": "day", "type": "temporal"},
      "y": {"field": {"repeat": "row"}, "type": "quantitative"}
    }
  }
}