Line chart

Line charts are ideal for showing how values change over time. Use them to highlight trends across dates, steps, or any continuous scale.

Add line chart

Set card to type "Vega Chart".

t0 screenshot - Add pie chart

Select data in the context dropdown of the chat window.

make a line chart

plot trend over time

convert to line chart

{
...
"mark": "line",
"encoding": ... ,
...
}

t0 screenshot - Add card

Property	Description
`x`	Horizontal axis. Use `temporal` for date or time fields.
`y`	Vertical axis. Use `quantitative` for numeric values.
`mark`	Set to `"line"` to draw a path connecting points.
`tooltip`	Shows values on hover.
`interpolate`	(Optional) Controls curve smoothing (e.g. `"monotone"`, `"step"`).
`view.stroke`	Removes outer chart stroke.
`autosize`	Ensures the chart fits inside its container.