bn2nd: extracts and returns some traits of a node defined into a bn
In rebastaba: Handling Bayesian networks

Description Usage Arguments Details Value Examples

(bn) The extraction is made for only one node but several different extractions can be asked when 'what' is a vector.
The hope is that function be used very extensively to ease further modifications within the /bn/ object structure.

1	bn2nd(bn, nod, what, check=TRUE)

`bn`	The /bn/ from which the extraction will be made.
`nod`	The node (name or nk specification) to be extracted.
`what`	A character defining by each of its composents what must be extracted. The different possibilities are: 'par': the direct parents of the node (in name specification) 'asc': all ascendants of the node (in name specification) 'chi': the direct parents of the node (in name specification) 'des': all ascendants of the node (in name specification) 'nat': variable natures o
`check`	Must checking be made?

The characteristics which are at the bn@nom level (like the variable names, indices of the variable node) are not included here because they might exist for this object.

A list with as many components as asked by 'what's with the same names. Each component being the computed response built up on the /bn/ exploration.

 rebastaba3k("RESET"); # (only for R checking)
 bn2nd(rebastaba.bn2, "B", "par");
 bn2nd(rebastaba.bn2, "B", "asc");
 bn2nd(rebastaba.bn2, "B", "chi");
 bn2nd(rebastaba.bn2, "B", "des");
 bn2nd(rebastaba.bn2, "B", "nat");