VariogramModel

scirs2_spatial::kriging

Enum VariogramModel 

Source 
pub enum VariogramModel {
    Spherical {
        range: f64,
        sill: f64,
        nugget: f64,
    },
    Exponential {
        range: f64,
        sill: f64,
        nugget: f64,
    },
    Gaussian {
        range: f64,
        sill: f64,
        nugget: f64,
    },
    Linear {
        slope: f64,
        nugget: f64,
    },
    Power {
        coefficient: f64,
        exponent: f64,
        nugget: f64,
    },
    Matern {
        range: f64,
        sill: f64,
        nugget: f64,
        nu: f64,
    },
}
Expand description

Variogram model types for Kriging

Variants§

§

Spherical

Spherical variogram: γ(h) = c₀ + c₁[1.5(h/a) - 0.5(h/a)³] for h ≤ a, γ(h) = c₀ + c₁ for h > a

Fields

§range: f64
§sill: f64
§nugget: f64
§

Exponential

Exponential variogram: γ(h) = c₀ + c₁[1 - exp(-h/a)]

Fields

§range: f64
§sill: f64
§nugget: f64
§

Gaussian

Gaussian variogram: γ(h) = c₀ + c₁[1 - exp(-(h/a)²)]

Fields

§range: f64
§sill: f64
§nugget: f64
§

Linear

Linear variogram: γ(h) = c₀ + c₁h (unbounded)

Fields

§slope: f64
§nugget: f64
§

Power

Power variogram: γ(h) = c₀ + c₁h^α for 0 < α < 2

Fields

§coefficient: f64
§exponent: f64
§nugget: f64
§

Matern

Matérn variogram with parameter ν

Fields

§range: f64
§sill: f64
§nugget: f64
§nu: f64

Implementations§

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impl VariogramModel

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pub fn spherical(range: f64, sill: f64, nugget: f64) -> Self

Create a spherical variogram model

§Arguments
  • range - Range parameter (distance where correlation becomes negligible)
  • sill - Sill parameter (maximum variance)
  • nugget - Nugget parameter (variance at zero distance)
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pub fn exponential(range: f64, sill: f64, nugget: f64) -> Self

Create an exponential variogram model

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pub fn gaussian(range: f64, sill: f64, nugget: f64) -> Self

Create a Gaussian variogram model

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pub fn linear(slope: f64, nugget: f64) -> Self

Create a linear variogram model

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pub fn power(coefficient: f64, exponent: f64, nugget: f64) -> Self

Create a power variogram model

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pub fn matern(range: f64, sill: f64, nugget: f64, nu: f64) -> Self

Create a Matérn variogram model

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pub fn evaluate(&self, h: f64) -> f64

Evaluate the variogram at distance h

§Arguments
  • h - Distance
§Returns
  • Variogram value
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pub fn effective_range(&self) -> f64

Get the effective range of the variogram

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pub fn sill(&self) -> f64

Get the sill (maximum variance) of the variogram

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pub fn nugget(&self) -> f64

Get the nugget effect

Trait Implementations§

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impl Clone for VariogramModel

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fn clone(&self) -> VariogramModel

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for VariogramModel

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

Formats the value using the given formatter. Read more

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