linear {amba}R Documentation

linear terms

Description

Create linear terms. These are relatively complex, and in general it is better to use a categorical or polynomial term instead. For more information on linear terms, refer to linear.design, linear.ESTIMATOR, linear.estimate and linear.matrix. Note these differ substantially from convention. A linear term usually contains a single variable, however may contain multiple parameter estimates. The current implementation does not store the linear matrix, and uses what are described as key functions to map real-world variables to model-variables (i.e. the linear matrix) used for estimation. The linear subclasses take care of key function specification.

Usage

linear (x, y=NULL, key=c ("1", "x"), valid.intercept=ifst (y), s)
## S3 method for class 'linear':
fitted(t, ...)
is.linear (t)
is.categorical (t)
is.polynomial (t)

Arguments

x
y
t
key
valid.intercept
s
...

[Package amba version 0.2.0 Index]