df.residual.aidsEst: Covariance matrix of an Almost Ideal Demand System

In micEconAids: Demand Analysis with the Almost Ideal Demand System (AIDS)

Covariance matrix of an Almost Ideal Demand System

Description

These method returns the covariance matrix of the coefficients from an Almost Ideal Demand System (AIDS).

Usage

   ## S3 method for class 'aidsEst'
df.residual( object, ... )

Arguments

object	an object of class aidsEst.
...	currently not used.

Value

The df.residual method for objects of class aidsEst returns a symmetric matrix: the covariance matrix of the coefficients.

Author(s)

Arne Henningsen

See Also

aidsEst, coef.aidsEst

micEconAids documentation built on May 20, 2022, 5:05 p.m.