Struct Trendline 

pub struct Trendline {
    pub kind: TrendlineKind,
    pub name: Option<String>,
    pub forward: f64,
    pub backward: f64,
    pub intercept: Option<f64>,
    pub display_equation: bool,
    pub display_r_squared: bool,
    pub color: Option<Color>,
    pub width: Option<f32>,
    pub dash: Option<LineDash>,
}

A chart trendline (Add Chart Element ▸ Trendline, Format Trendline pane).

Fields

kind: TrendlineKind

name: Option<String>

Custom name shown in the legend; None = automatic (“Linear (Sales)”).

forward: f64

Forecast past the last point, in x units (categories on a category axis).

backward: f64

Forecast before the first point, in x units.

intercept: Option<f64>

Set Intercept: fixed y at x = 0 (linear, exponential, polynomial).

display_equation: bool

display_r_squared: bool

color: Option<Color>

Line colour; None = the series colour.

width: Option<f32>

Line width in points; None = default.

dash: Option<LineDash>

Line dash; None = default.

Implementations

impl Trendline

pub const MAX_FORECAST: f64 = 100_000.0

Longest forward / backward forecast kept from a file or a command, in x units. Excel’s own limit is unconfirmed; the renderer additionally bounds the forecast by the plot’s slot budget.

pub fn clamp_forecast(v: f64) -> f64

A forecast distance as stored: finite, not negative (NaN and infinity become 0) and at most Self::MAX_FORECAST.

Trait Implementations

impl Clone for Trendline

fn clone(&self) -> Trendline

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Trendline

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Trendline

fn default() -> Trendline

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Trendline

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Trendline

fn eq(&self, other: &Trendline) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Trendline

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Trendline