Trait Inferable 

pub trait Inferable: Debug + Identifiable {
    // Required methods
    fn question(&self) -> DescriptionValue;
    fn observation(&self) -> NumericalValue;
    fn threshold(&self) -> NumericalValue;
    fn effect(&self) -> NumericalValue;
    fn target(&self) -> NumericalValue;

    // Provided methods
    fn conjoint_delta(&self) -> NumericalValue { ... }
    fn is_inferable(&self) -> bool { ... }
    fn is_inverse_inferable(&self) -> bool { ... }
}

Trait for inferable types with causal reasoning properties.

Provides properties for:

• question: Text description
• observation: Numerical observation value
• threshold: Minimum observation value
• effect: Expected effect value
• target: Target value to compare effect against

Provides methods for:

• conjoint_delta(): Estimate of unobserved factors
• is_inferable(): Check if inference is valid
• is_inverse_inferable(): Check inverse inference

Requires approximate float equality util function.

Required Methods

fn question(&self) -> DescriptionValue

fn observation(&self) -> NumericalValue

fn threshold(&self) -> NumericalValue

fn effect(&self) -> NumericalValue

fn target(&self) -> NumericalValue

Provided Methods

fn conjoint_delta(&self) -> NumericalValue

Calculates the conjoint delta for this item.

The conjoint delta estimates the effect of unobserved factors.

It is calculated as:

1.0 - observation

Where:

• observation is the numerical observation value

Finally, the absolute value is taken.

fn is_inferable(&self) -> bool

Checks if inference is valid for this item.

Returns true if:

• Observation is greater than threshold
• Effect is approximately equal to target

Uses 4 decimal places for float comparison.

fn is_inverse_inferable(&self) -> bool

Checks if inverse inference is valid for this item.

Returns true if:

• Observation is less than threshold
• Effect is approximately equal to target

Uses 4 decimal places for float comparison.

Implementors

impl Inferable for Inference