Trait DataFramePlotExt

Source

pub trait DataFramePlotExt {
    // Required method
    fn plot(&self) -> DfPlot<'_>;
}

Expand description

Adds a pandas/seaborn-style .plot() accessor to a Polars DataFrame.

The terminal methods return a Figure; save it via the umbrella crate’s FigureExt (use plotkit::prelude::*; then fig.save("out.png")?).

use plotkit_polars::DataFramePlotExt;
use plotkit_polars::polars::prelude::*;

let df = DataFrame::new(vec![
    Series::new("x".into(), &[1.0, 2.0, 3.0]).into(),
    Series::new("y".into(), &[1.0, 4.0, 9.0]).into(),
])
.unwrap();

let fig = df.plot().line("x", "y").unwrap();
assert_eq!(fig.num_axes(), 1);