getDAG

This function extracts an adjacency matrix of
a maximum scoring DAG from the result of the MCMC run.

Implementation of a collection of MCMC methods for Bayesian structure learning
of directed acyclic graphs (DAGs), both from continuous and discrete data. For efficient
inference on larger DAGs, the space of DAGs is pruned according to the data. To filter
the search space, the algorithm employs a hybrid approach, combining constraint-based
learning with search and score. A reduced search space is initially defined on the basis
of a skeleton obtained by means of the PC-algorithm, and then iteratively improved with
search and score. Search and score is then performed following two approaches:
Order MCMC, or Partition MCMC.
The BGe score is implemented for continuous data and the BDe score is implemented
for binary data or categorical data. The algorithms may provide the maximum a posteriori
(MAP) graph or a sample (a collection of DAGs) from the posterior distribution given the data.
All algorithms are also applicable for structure learning and sampling for dynamic Bayesian networks.
References:
J. Kuipers, P. Suter, G. Moffa (2022) <doi:10.1080/10618600.2021.2020127>,
N. Friedman and D. Koller (2003) <doi:10.1023/A:1020249912095>,
J. Kuipers and G. Moffa (2017) <doi:10.1080/01621459.2015.1133426>,
M. Kalisch et al. (2012) <doi:10.18637/jss.v047.i11>,
D. Geiger and D. Heckerman (2002) <doi:10.1214/aos/1035844981>,
P. Suter, J. Kuipers, G. Moffa, N.Beerenwinkel (2023) <doi:10.18637/jss.v105.i09>.

Polina Suter

BiDAG

Bayesian Inference for Directed Acyclic Graphs

getDAG function

<dl><dt>x</dt>
<dd>object of class 'orderMCMC','partitionMCMC' or 'iterativeMCMC'</dd>
<dt>amat</dt>
<dd>logical, when TRUE adjacency matrix is returned and object of class 'graphNEL' otherwise</dd>
<dt>cp</dt>
<dd>logical, when TRUE the CPDAG (equivalence class) is returned and DAG otherwise; FALSE by default</dd></dl>

Arguments

Extracting adjacency matrix (DAG) from MCMC object — getDAG

<dl>

<dt>x</dt>
<dd>object of class 'orderMCMC','partitionMCMC' or 'iterativeMCMC'</dd>


<dt>amat</dt>
<dd>logical, when TRUE adjacency matrix is returned and object of class 'graphNEL' otherwise</dd>


<dt>cp</dt>
<dd>logical, when TRUE the CPDAG (equivalence class) is returned and DAG otherwise; FALSE by default</dd>

</dl>

getDAG: Extracting adjacency matrix (DAG) from MCMC object

Description

Usage

Value

Arguments

Examples