stress majorization for larger graphs based on a set of pivot nodes.
Usage
layout_with_sparse_stress(g, pivots, weights = NA, iter = 500)
layout_igraph_sparse_stress(g, pivots, weights = NA, iter = 500, circular)Arguments
- g
igraph object
- pivots
number of pivots
- weights
ignored
- iter
number of iterations during stress optimization
- circular
not used
Details
The layout_igraph_* function should not be used directly. It is only used as an argument for plotting with 'igraph'. 'ggraph' natively supports the layout.
References
Ortmann, M. and Klimenta, M. and Brandes, U. (2016). A Sparse Stress Model. https://arxiv.org/pdf/1608.08909.pdf
Examples
if (FALSE) {
library(igraph)
library(ggraph)
g <- sample_gnp(1000, 0.005)
ggraph(g, layout = "sparse_stress", pivots = 100) +
geom_edge_link0(edge_colour = "grey66") +
geom_node_point(shape = 21, fill = "grey25", size = 5) +
theme_graph()
}