BLP Model Formulation

Configuration for designing model matrices from R formulas.

Methods

Public methods

• BLPFormulation$new()

• BLPFormulation$build_matrix()

• BLPFormulation$get_names()

• BLPFormulation$has_prices()

• BLPFormulation$has_shares()

• BLPFormulation$get_absorb()

• BLPFormulation$print()

• BLPFormulation$clone()

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Method new()

Create a new formulation

Usage

BLPFormulation$new(formula, absorb = NULL)

Arguments

formula

Formula string or R formula

absorb

Optional formula for absorbed fixed effects

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Method build_matrix()

Build design matrix from data

Usage

BLPFormulation$build_matrix(data)

Arguments

data

Data frame

Returns

Matrix with named columns

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Method get_names()

Get column names

Usage

BLPFormulation$get_names()

Returns

Character vector

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Method has_prices()

Check if prices are in the formulation

Usage

BLPFormulation$has_prices()

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Method has_shares()

Check if shares are in the formulation

Usage

BLPFormulation$has_shares()

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Method get_absorb()

Get absorb formula (if any)

Usage

BLPFormulation$get_absorb()

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Method print()

Print formulation

Usage

BLPFormulation$print(...)

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Method clone()

The objects of this class are cloneable with this method.

Usage

BLPFormulation$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.