layout_sparse_stress {graphlayouts}

sparse stress graph layout

Description

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.

Value

matrix of xy coordinates

Author(s)

David Schoch

References

Ortmann, M. and Klimenta, M. and Brandes, U. (2016). A Sparse Stress Model. https://arxiv.org/pdf/1608.08909.pdf

Examples

## Not run: 
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()

## End(Not run)