RSiena (version 1.4.7)

sienaDataCreate: Function to create a Siena data object

Description

Creates a Siena data object from input dependent variables (networks and possibly behavioural variables), covariates, and composition change objects.

Usage

sienaDataCreate(..., nodeSets=NULL, getDocumentation=FALSE)

Value

An object of class "siena" which is designed to be used in a siena model fit by siena07. The components of the object are:

nodeSets

List of node sets involved

observations

Integer indicating number of waves of data

depvars

List of networks and behavior variables

cCovars

List of constant covariates

vCovars

List of changing covariates

dycCovars

List of constant dyadic covariates

dyvCovars

List of changing dyadic covariates

compositionChange

List of composition change objects corresponding to the node sets

Arguments

...

objects of class sienaDependent, coCovar, varCovar, coDyadCovar, varDyadCovar, and/or sienaCompositionChange; or a list of such objects, of which the first element must not be a sienaCompositionChange object. There should be at least one sienaDependent object.
If there are one-mode as well as two-mode dependent networks, the one-mode networks should be mentioned first.

nodeSets

list of Siena node sets. Default is the single node set named "Actors", length equal to the number of rows in the first object of class "sienaDependent". If the entire data set contains more than one node set, then the node sets must have been specified in the creation of all data objects mentioned in ....

getDocumentation

Flag to allow documentation of internal functions, not for use by users.

Author

Ruth Ripley

Details

The function checks that the objects fit, that there is at least one dependent variable, and adds various attributes to each dependent variable describing the data. If there is more than one nodeSet they must all be specified.
Function print01Report will give a basic description of the data object and is a check useful, e.g., for diagnosing problems.

References

See https://www.stats.ox.ac.uk/~snijders/siena/

See Also

sienaDependent, coCovar, varCovar, coDyadCovar, varDyadCovar, sienaNodeSet, sienaCompositionChange, sienaGroupCreate, sienaDataConstraint, sienaNodeSet, print01Report

Examples

mynet <- sienaDependent(array(c(s501, s502, s503), dim=c(50, 50, 3)))
mybeh <- sienaDependent(s50a, type="behavior")
mydata <- sienaDataCreate(mynet, mybeh)
# This gives the same result as
mydata <- sienaDataCreate(list(mynet, mybeh))
## And for a two-mode network
mynet1 <- sienaDependent(array(c(s501, s502), dim=c(50, 50, 2)), nodeSet="senders")
senders <- sienaNodeSet(50, nodeSetName="senders")
receivers <- sienaNodeSet(30, nodeSetName="receivers")
mynet2 <- sienaDependent(array(c(s501[,1:30], s502[,1:30]), dim=c(50, 30, 2)),
      nodeSet=c("senders", "receivers"))
(mydata <- sienaDataCreate(mynet1, mynet2, nodeSets=list(senders, receivers)))
if (FALSE) {
print01Report(mydata, modelname = "mydescription")
}