to_ergm_Cdouble: Methods to serialize objects into numeric vectors for passing...

In ergm: Fit, Simulate and Diagnose Exponential-Family Models for Networks

Methods to serialize objects into numeric vectors for passing to the C side.

Description

These methods return a vector of doubles. For edge lists, this usually takes the form of a 2 e + 1- or 3 e + 1-vector, containing the number of edges followed a column-major serialization of the edgelist matrix.

Usage

## S3 method for class 'network'
to_ergm_Cdouble(x, attrname = NULL, ...)

## S3 method for class 'ergm_state'
to_ergm_Cdouble(x, attrname = NULL, ...)

## S3 method for class 'matrix'
to_ergm_Cdouble(x, prototype = NULL, ...)

## S3 method for class 'rlebdm'
to_ergm_Cdouble(x, ...)

to_ergm_Cdouble(x, ...)

Arguments

x	object to be serialized.
attrname	name of an edge attribute.
...	arguments for methods.
prototype	A network whose relevant attributes (size, directedness, bipartitedness, and presence of loops) are imposed on the output edgelist if x is already an edgelist. (For example, if the prototype is undirected, to_ergm_Cdouble will ensure that t < h.)

Value

The rlebdm method returns a vector with the following:

• number of nonzero dyads,

• number of runs of nonzeros,

• starting positions of the runs, and

• cumulative lengths of the runs, prepended with 0.

Methods (by class)

• to_ergm_Cdouble(network): Method for network objects.

• to_ergm_Cdouble(ergm_state): Method for ergm_state objects, extracting their edgelists.

• to_ergm_Cdouble(matrix): Method for matrix objects, assumed to be edgelists.

• to_ergm_Cdouble(rlebdm): Method for rlebdm objects.

ergm documentation built on Oct. 7, 2024, 5:08 p.m.