pcalg (version 2.7-12)

gmI: Graphical Model 7-dim IDA Data Examples

Description

This data set contains a matrix containing information on seven gaussian variables and the corresonding DAG model.

Usage

data(gmI)

Format

The two gmI* objects are each a list of two components x, an \(n \times 7\) numeric matrix, and g, a DAG, a graph generated by randomDAG.

See gmG for more

Details

The data was generated as indicated below. First, a random DAG was generated, then samples were drawn from this model, strictly speaking for gmI7 only.

Examples

data(gmI)
str(gmI, max=3)
stopifnot(identical(gmI $ g, gmI7 $ g))
if(dev.interactive()) { ## to save time in tests
  round(as(gmI $ g, "Matrix"), 2) # weight ("adjacency") matrix
  if (require(Rgraphviz)) plot(gmI $ g)
  pairs(gmI$x, gap = 0,
        panel=function(...) smoothScatter(..., add=TRUE))
}