Strip Plot

{
  "$schema": "https://vega.github.io/schema/vega-lite/v2.json",
  "description": "Shows the relationship between horsepower and the numbver of cylinders using tick marks.",
  "data": {"url": "data/cars.json"},
  "mark": "tick",
  "encoding": {
    "x": {"field": "Horsepower", "type": "quantitative"},
    "y": {"field": "Cylinders", "type": "ordinal"}
  }
}