generateA: Generates a connectivity matrix A.

In backShift: Learning Causal Cyclic Graphs from Unknown Shift Interventions

Description

Generates a connectivity matrix A with cycle product smaller than 1.

Usage

generateA(p, expNumNeigh, minCoef, maxCoef, cyclic, verbose = FALSE)

Arguments

p	Number of variables.
expNumNeigh	Expected number of neighbors, to be passed to randDAG.
minCoef	Minimal edge coefficient. The absolute magnitude of the coefficients will be sampled uniformly at random from the range [minCoef, maxCoef].
maxCoef	Maximal edge coefficient. The absolute magnitude of the coefficients will be sampled uniformly at random from the range [minCoef, maxCoef].
cyclic	If TRUE, connectivity matrix will contain at least one cycle.
verbose	If TRUE, comments will be printed.

Details

If expNumNeigh and maxCoef are large, function may fail to find a connectivity matrix with cycle product smaller one. In this case, try to lower these parameters.

Value

A list with two elements

• A Connectivity matrix

• sizeCycle Size of the cycle, if cyclic was set to TRUE.

backShift documentation built on July 2, 2020, 4:01 a.m.