R: Fixed Effect Model

RMfixed {RandomFields} | R Documentation

## Fixed Effect Model

### Description

Expressions of the form `X@RMfixed(beta)` can be used within a formula of the type

response ~ fixed effects + random effects + error term

that specifies the Linear Mixed Model.

Important Remark: `RMfixed` is NOT a function although the parantheses notation is used to specify the vector of coefficients.

The matrix X is the design matrix and β is a vector of coefficients

Note that a fixed effect of the form X is interpreted as `X@RMfixed(beta=NA)` by default (and β is estimated provided that the formula is used in `RFfit`). Note that the `1` in an expression `1@RMfixed(beta)` is interpreted as the identity matrix.

### Author(s)

Martin Schlather, schlather@math.uni-mannheim.de

### See Also

`RMmodel`, `RFformula`, `RFsimulate`,

### Examples

     ## For examples see the help page of 'RFformula' ##

[Package RandomFields version 3.1.50 Index]