Struct GeomSmooth 

pub struct GeomSmooth {
    pub color: (u8, u8, u8),
    pub fill: (u8, u8, u8),
    pub line_width: f64,
    pub alpha: f64,
    pub se: bool,
    pub n_points: usize,
    pub method: SmoothMethod,
}

Smooth line with optional confidence ribbon.

Fields

color: (u8, u8, u8)

fill: (u8, u8, u8)

line_width: f64

alpha: f64

se: bool

n_points: usize

method: SmoothMethod

Implementations

impl GeomSmooth

pub fn loess(self, span: f64) -> Self

Use LOESS smoothing with the given span.

Examples found in repository

examples/loess_smooth.rs (line 34)

fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Generate noisy sine wave data
    let x: Vec<f64> = (0..80).map(|i| (i as f64) * 0.1).collect();
    let y: Vec<f64> = (0..80)
        .map(|i| {
            let xv = (i as f64) * 0.1;
            let noise = ((i * 17 + 3) % 11) as f64 / 11.0 - 0.5; // deterministic pseudo-noise
            (xv * 0.8).sin() * 2.0 + noise * 1.5
        })
        .collect();

    let df = df! {
        "x" => &x,
        "y" => &y,
    }?;

    // Linear smooth (default)
    GGPlot::new(df.clone())
        .aes(Aes::new().x("x").y("y"))
        .geom_point()
        .geom_smooth()
        .title("Linear Smooth (method = lm)")
        .save("smooth_lm.svg")?;

    println!("Saved smooth_lm.svg");

    // LOESS smooth
    GGPlot::new(df)
        .aes(Aes::new().x("x").y("y"))
        .geom_point()
        .geom_smooth_with(GeomSmooth::default().loess(0.3))
        .title("LOESS Smooth (span = 0.3)")
        .save("smooth_loess.svg")?;

    println!("Saved smooth_loess.svg");
    Ok(())
}

Trait Implementations

impl Default for GeomSmooth

fn default() -> Self

Returns the “default value” for a type.

impl Geom for GeomSmooth

fn draw( &self, data: &DataFrame, coord: &dyn Coord, scales: &ScaleSet, _theme: &Theme, backend: &mut dyn DrawBackend, ) -> Result<(), RenderError>

Draw this geometry.

fn required_aes(&self) -> Vec<Aesthetic>

Required aesthetics.

fn default_stat(&self) -> Box<dyn Stat>

Default stat for this geom.

fn default_position(&self) -> Box<dyn Position>

Default position adjustment.

fn default_params(&self) -> GeomParams

Non-mapped visual defaults.

fn name(&self) -> &str

Name for debug/display.

fn set_series_color(&mut self, color: (u8, u8, u8))

Apply a brand/primary color to this geom’s single-series default (its color or fill). The build pipeline calls this only when the layer has no color/fill aesthetic mapped, so an explicit mapping always wins. The default is a no-op; series geoms override it.