I'm running an Ubuntu 10.04 system and installed R 2.10.1 through the package
manger. I then installed Rgraphviz 1.24 and graph 1.26 through R.
I'm trying to understand why a complex function my team wrote causes R's memory
footprint viewed through top to increase every time it's run. I traced the
increase in memory usage to layoutGraph() and wrote the following short
function that reproduces the problem:
foo <- function () {
library(Rgraphviz)
set.seed(123)
V <- letters[1:26]
M <- 1:2
g1 <- randomGraph(V, M, 0.5)
edgemode(g1) <- "directed"
x <- layoutGraph(g1,name="foo",layoutType="twopi", recipEdges="distinct")
}
I expected that any memory allocated by this function would be freed when it
returns, but that's not the case. Is there something that I need to be doing to
to clean up after using layoutGraph?
Thanks,
Andreas
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