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# File tests/testthat/test-ergm-godfather.R in package ergm, part of the
# Statnet suite of packages for network analysis, https://statnet.org .
#
# This software is distributed under the GPL-3 license. It is free,
# open source, and has the attribution requirements (GPL Section 7) at
# https://statnet.org/attribution .
#
# Copyright 2003-2023 Statnet Commons
################################################################################
nwd <- network.initialize(4, dir=TRUE)
nwd[,,names.eval="w",add.edges=TRUE] <-
matrix(c(0,1,2,0,
0,0,1,3,
1,0,0,0,
1,4,1,0),
4,4,
byrow=TRUE)
nwu <- network.initialize(4, dir=FALSE)
nwu[,,names.eval="w",add.edges=TRUE] <-
matrix(c(0,1,2,0,
1,0,1,3,
2,1,0,0,
0,3,0,0),
4,4,
byrow=TRUE)
test_that("ergm.godfather() with toggles", {
gf <- ergm.godfather(nwd~edges+triangles, changes=list(matrix(c(1,2,
2,3),
ncol=2,byrow=TRUE),
matrix(c(1,3,
2,3),
ncol=2,byrow=TRUE)),
stats.start=TRUE)
expect_equal(as.matrix(gf),
matrix(c(8,8,
6,2,
6,3),
ncol=2,byrow=TRUE), ignore_attr=TRUE)
})
test_that("ergm.godfather() with toggles, relative statistics", {
gf <- ergm.godfather(nwd~edges+triangles, changes=list(matrix(c(1,2,
2,3),
ncol=2,byrow=TRUE),
matrix(c(1,3,
2,3),
ncol=2,byrow=TRUE)),
changes.only=TRUE)
expect_equal(as.matrix(gf),
matrix(c(-2,-6,
-2,-5),
ncol=2,byrow=TRUE), ignore_attr=TRUE)
})
test_that("ergm.godfather() with values", {
gf <- ergm.godfather(nwd~edges+triangles, changes=list(matrix(c(1,2,1,
2,3,0),
ncol=3,byrow=TRUE),
matrix(c(1,3,1,
2,3,1),
ncol=3,byrow=TRUE)))
expect_equal(as.matrix(gf),
matrix(c(7,4,
8,8),
ncol=2,byrow=TRUE), ignore_attr=TRUE)
})
test_that("undirected ergm.godfather() with toggles", {
gf <- ergm.godfather(nwu~edges+triangles, changes=list(matrix(c(1,2,
2,3),
ncol=2,byrow=TRUE),
matrix(c(1,3,
2,3),
ncol=2,byrow=TRUE)),
stats.start=TRUE)
expect_equal(as.matrix(gf),
matrix(c(4,1,
2,0,
2,0),
ncol=2,byrow=TRUE), ignore_attr=TRUE)
})
test_that("undirected ergm.godfather() with values", {
gf <- ergm.godfather(nwu~edges+triangles, changes=list(matrix(c(1,2,1,
2,3,0),
ncol=3,byrow=TRUE),
matrix(c(1,3,1,
2,3,1),
ncol=3,byrow=TRUE)))
expect_equal(as.matrix(gf),
matrix(c(3,0,
4,1),
ncol=2,byrow=TRUE), ignore_attr=TRUE)
})
test_that("valued ergm.godfather()", {
gf <- ergm.godfather(nwd~nonzero+sum+transitiveweights(), response="w",
changes=list(matrix(c(1,2,1,
2,3,0),
ncol=3,byrow=TRUE),
matrix(c(1,3,1,
2,3,1),
ncol=3,byrow=TRUE)))
expect_equal(as.matrix(gf),
matrix(c(7,13,3,
8,13,5),
ncol=3,byrow=TRUE), ignore_attr=TRUE)
})
test_that("valued ergm.godfather() returning the network", {
gf <- ergm.godfather(nwd~nonzero+sum+transitiveweights(), response="w",
changes=list(matrix(c(1,2,1,
2,3,0),
ncol=3,byrow=TRUE),
matrix(c(1,3,1,
2,3,1),
ncol=3,byrow=TRUE)),
end.network=TRUE)
expect_equal(as.matrix(gf, attrname="w"),
matrix(c(0,1,1,0,
0,0,1,3,
1,0,0,0,
1,4,1,0),
4,4,
byrow=TRUE), ignore_attr=TRUE
)
})
test_that("undirected valued ergm.godfather()", {
gf <- ergm.godfather(nwu~nonzero+sum+transitiveweights(), response="w",
changes=list(matrix(c(1,2,1,
2,3,0),
ncol=3,byrow=TRUE),
matrix(c(1,3,1,
2,3,1),
ncol=3,byrow=TRUE)))
expect_equal(as.matrix(gf),
matrix(c(3,6,0,
4,6,3),
ncol=3,byrow=TRUE), ignore_attr=TRUE)
})
test_that("undirected valued ergm.godfather() returning the network", {
gf <- ergm.godfather(nwu~nonzero+sum+transitiveweights(), response="w",
changes=list(matrix(c(1,2,1,
2,3,0),
ncol=3,byrow=TRUE),
matrix(c(1,3,1,
2,3,1),
ncol=3,byrow=TRUE)),
end.network=TRUE)
expect_equal(as.matrix(gf, attrname="w"),
matrix(c(0,1,1,0,
1,0,1,3,
1,1,0,0,
0,3,0,0),
4,4,
byrow=TRUE), ignore_attr=TRUE
)
})
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