Turns an edge list into the two data frames that geom_sketch_node() and
geom_sketch_edge() consume, placing nodes with the pure-R force-directed
force_layout(). Accepts a plain two-column data frame (extra columns are
carried through as edge attributes) or - optionally - an igraph object.
Arguments
- edges
A data frame or matrix whose first two columns are the edge endpoints (any identifiers), or an
igraphobject. Extra data-frame columns are kept as edge attributes.- nodes
Optional. A character vector of node identifiers, or a data frame whose first column is the identifier (further columns are kept as node attributes). Sets the node universe and ordering; defaults to the identifiers seen in
edges.- niter, seed
Passed to
force_layout().
Value
A list with two data frames: nodes (name, x, y, plus any
node attributes) and edges (from, to, x, y, xend, yend, plus
any edge attributes).
See also
geom_sketch_edge(), force_layout().
Other sketch-geoms:
GeomSketchAbline,
GeomSketchArrow,
GeomSketchBoxplot,
GeomSketchBracket,
GeomSketchCallout,
GeomSketchChicklet,
GeomSketchCol,
GeomSketchContourFilled,
GeomSketchCurve,
GeomSketchDotplot,
GeomSketchDumbbell,
GeomSketchEdge,
GeomSketchEllipse,
GeomSketchEngrave,
GeomSketchGantt,
GeomSketchHex,
GeomSketchLine,
GeomSketchLinerange,
GeomSketchLollipop,
GeomSketchMarkCircle,
GeomSketchMarkHull,
GeomSketchPath,
GeomSketchPoint,
GeomSketchPolygon,
GeomSketchRect,
GeomSketchRibbon,
GeomSketchRug,
GeomSketchSegment,
GeomSketchSfPolygon,
GeomSketchSlope,
GeomSketchSmooth,
GeomSketchSpoke,
GeomSketchTextRepel,
GeomSketchViolin,
StatSketchBeeswarm,
StatSketchCalendar,
StatSketchDensityRidges,
StatSketchFunnel,
StatSketchPie,
StatSketchPyramid,
StatSketchRadar,
StatSketchStream,
StatSketchTreemap,
StatSketchWaffle,
StatSketchWaterfall,
annotate_sketch(),
annotate_sketch_arrow(),
annotate_sketch_callout(),
annotate_sketch_highlight(),
geom_sketch_alluvial(),
geom_sketch_arc_diagram(),
geom_sketch_bin2d(),
geom_sketch_bump(),
geom_sketch_chord(),
geom_sketch_contour(),
geom_sketch_count(),
geom_sketch_dendrogram(),
geom_sketch_density(),
geom_sketch_density2d(),
geom_sketch_ecdf(),
geom_sketch_function(),
geom_sketch_histogram(),
geom_sketch_jitter(),
geom_sketch_marimekko(),
geom_sketch_mosaic(),
geom_sketch_parallel(),
geom_sketch_qq(),
geom_sketch_quantile(),
geom_sketch_rose(),
geom_sketch_sunburst(),
geom_sketch_text()
Examples
edges <- data.frame(from = c("A", "A", "B"), to = c("B", "C", "C"))
g <- sketch_graph(edges, seed = 1L)
g$nodes
#> name x y
#> 1 A 1.0000000 0.05530784
#> 2 B -1.0000000 1.00000000
#> 3 C -0.9275911 -1.00000000
g$edges
#> from to x y xend yend
#> 1 A B 1 0.05530784 -1.0000000 1
#> 2 A C 1 0.05530784 -0.9275911 -1
#> 3 B C -1 1.00000000 -0.9275911 -1