Link Distance
Description
Hide links over a certain length, based on computations by graph_layout_static .
Nodes will actually be hidden in resulting visualisation but not removed.
Usage
hide_long_links(g, length = 1)
compute_links_length(g)
Arguments
| Argument | Description |
|---|---|
g | An object of class graph as returned by graph or a graph_proxy as returned by a function of the same name. |
length | Length above which links should be hidden. |
Details
This is the technique used by [https://github.com/anvaka](Andrei Kashcha) , in his [https://anvaka.github.io/pm](package managers visualisation project) , though the latter does not use ngraph.pixel (which grapher uses) and hides links based on the length in pixels. Hiding distant edges allows to undo the hairball while still being able to discern smaller communities.
Examples
gdata <- make_data(500)
g <- graph(gdata) %>%
graph_layout_static(scaling = c(-1000, 1000)) %>%
graph_cluster() %>%
scale_link_color(cluster)
# hide links longer than 100
hide_long_links(g, 100)
# or get computed lengths
lengths <- compute_links_length(g)
# define threshold
threshold <- quantile(lengths$length, .2)
hide_long_links(g, threshold)