sienaDataConstraint function

Function to change the values of the constraints between networks.

This function allows the user to change the constraints of "higher", "disjoint" and "atLeastOne" for a specified pair of networks in a Siena data object.

sienaDataConstraint(x, net1, net2,
          type = c("higher", "disjoint", "atLeastOne"), value = FALSE)

Arguments

• x: Siena data object; maybe a group object?
• net1: name of first network
• net2: name of second network
• type: one of "higher", "disjoint", "atleastOne". Default is "higher".
• value: Boolean giving the value.

Details

The value of the appropriate attribute is set to the value requested. Note that, for value=TRUE, the correspondence of this value to the data is not checked.

Returns

Updated Siena data object.

References

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

Author(s)

Ruth Ripley

See Also

sienaDataCreate, sienaGroupCreate

Examples

nowFriends <- sienaDependent(array(c(s501, s502, s503), dim=c(50, 50, 3)))
ever <- array(c(s501, s502, s503), dim=c(50, 50, 3))
ever[,,2] <- pmax(ever[,,1], ever[,,2])
ever[,,3] <- pmax(ever[,,2], ever[,,3])
everFriends <- sienaDependent(ever)
# Note: this data set serves to illustrate this function,
# but it is not an appropriate data set for estimation by siena07,
# because everFriends (for the three waves together) depends deterministically
# on nowFriends (for the three waves together).
nowOrEver <- sienaDataCreate(nowFriends, everFriends)
attr(nowOrEver, "higher")
nowOrEver
nowOrEver.unconstrained <-
   sienaDataConstraint(nowOrEver, everFriends, nowFriends, "higher", FALSE)
nowOrEver.unconstrained
attr(nowOrEver.unconstrained, "higher")