model.matrix.Pedigree {GeneticsPed} | R Documentation

## Model matrix for individuals with and without records

### Description

`model.matrix` for pedigree creates design matrix (Z) for individuals with and without records. Used mainly for educational purposes.

### Usage

    ## S3 method for class 'Pedigree'
    model.matrix(object, y, id, left=TRUE, names=TRUE,
                                    ...)

### Arguments

`object` | Pedigree
`names` | logical, should returned matrix have row/colnames; this can be used to get leaner matrix
`y` | numeric, vector of (phenotypic) records
`id` | vector of subjects for `y`
`left` | logical, bind columns of individuals without records to left (`left=TRUE`) or right (`left=FALSE`) side of Z
`...` | arguments passed to `model.matrix`

### Value

A model matrix of n * q dimension, where n is number of records in `y` and q is number of subjects in the pedigree

### Author(s)

Gregor Gorjanc

### See Also

`Pedigree`, `relationshipAdditive`, `inverseAdditive` and `model.matrix`

### Examples

      data(Mrode3.1)
      (x <- Pedigree(x=Mrode3.1, subject="calf", ascendant=c("sire", "dam"),
                     ascendantSex=c("Male", "Female"), sex="sex"))
      model.matrix(object=x, y=x$pwg, id=x$calf)

[Package GeneticsPed version 1.56.0 Index]