micEcon (version 0.5-22)

df.residual.aidsEst: 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, \dots )

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.

See Also

aidsEst, coef.aidsEst