---
url: /mosaic/examples/driving-shifts.md
---
# Driving Shifts into Reverse

A connected scatter plot of miles driven vs. gas prices.

**Credit**: Adapted from an [Observable Plot example](https://observablehq.com/@observablehq/plot-connected-scatterplot), which in turn adapts Hannah Fairfield's [New York Times article](http://www.nytimes.com/imagepages/2010/05/02/business/02metrics.html).

## Specification

```py \[Python]
import vgplot as vg

driving = vg.parquet("data/driving.parquet")

view = vg.plot(
    vg.line(driving, x="miles", y="gas", curve="catmull-rom", marker=True),
    vg.text(
        driving,
        x="miles",
        y="gas",
        text=vg.sql("year::VARCHAR"),
        dy=-6,
        line_anchor="bottom",
        filter=vg.sql("year % 5 = 0"),
    ),
    vg.inset(10),
    vg.grid(True),
    vg.x_label("Miles driven (per person-year)"),
    vg.y_label("Cost of gasoline ($ per gallon)"),
)

```