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`residuals.glsStruct` Calculate glsStruct Residuals

The residuals for the linear model represented by object are extracted.

## S3 method for class 'glsStruct'
residuals(object, glsFit, ...)

`object`	an object inheriting from class `"glsStruct"`, representing a list of linear model components, such as `corStruct` and `"varFunc"` objects.
`glsFit`	an optional list with components `logLik` (log-likelihood), `beta` (coefficients), `sigma` (standard deviation for error term), `varBeta` (coefficients' covariance matrix), `fitted` (fitted values), and `residuals` (residuals). Defaults to `attr(object, "glsFit")`.
`...`	some methods for this generic require additional arguments. None are used in this method.

a vector with the residuals for the linear model represented by object.

This method function is primarily used inside gls and residuals.gls.

José Pinheiro and Douglas Bates [email protected]