milkcomp

milkcomp1


  Data from an experiment on composition of sow milk. Milk composition
  is measured on four occasions during lactation on a number of
  sows. The treatments are different types of fat added to the sows
  feed. 


datasets

The 'gRbase' package provides general features
which are used by other graphical modelling packages, in particular
by the packages 'gRain', 'gRim' and 'gRc'.

'gRbase' contains several datasets relevant for use in connection with
graphical models. Almost all datasets used in the book Graphical
Models with R (2012) are contained in 'gRbase'.

'gRbase' implements several graph algorithms (based mainly on
representing graphs as adjacency matrices - either in the form
of a standard matrix or a sparse matrix). Some graph
algorithms are:
(i) maximum cardinality search (for marked and unmarked graphs).
(ii) moralize.
(iii) triangulate.
(iv) junction tree.

'gRbase' facilitates array operations,

'gRbase' implements functions for testing for conditional independence.

'gRbase' illustrates how hierarchical log-linear models may be
implemented and describes concept of graphical meta
data. These features, however, are not maintained anymore and
remains in 'gRbase' only because there exists a paper describing
these facilities: A Common Platform for Graphical Models in R:
The 'gRbase' Package, Journal of Statistical Software, Vol 14,
No 17, 2005.

NOTICE Proper functionality of 'gRbase' requires that the packages graph,
'Rgraphviz' and 'RBGL' are installed from 'bioconductor'; for
installation instructions please refer to the webpage given below.

Søren Højsgaard

gRbase

A Package for Graphical Modelling in R

milkcomp function

A data frame with 214 observations on the following 7 variables.
  <dl>
    <dt><code>sow</code></dt><dd>a numeric vector</dd> <dt><code>lactime</code></dt><dd>a numeric vector</dd> <dt><code>treat</code></dt><dd>a factor with levels <code>a</code> <code>b</code> <code>c</code> <code>d</code> <code>e</code> <code>f</code> <code>g</code></dd> <dt><code>fat</code></dt><dd>a numeric vector</dd> <dt><code>protein</code></dt><dd>a numeric vector</dd> <dt><code>dm</code></dt><dd>(dry matter) a numeric vector</dd> <dt><code>lactose</code></dt><dd>a numeric vector</dd> </dl> 

milkcomp: Milk composition data

Description

Usage

Arguments

Format

Details

References

Examples