facet_nodes: Create small multiples based on node attributes

In YTLogos/ggraph: An Implementation of Grammar of Graphics for Graphs and Networks

Description

This function is equivalent to facet_wrap but only facets nodes. Edges are drawn if their terminal nodes are both present in a panel.

Usage

facet_nodes(facets, nrow = NULL, ncol = NULL, scales = "fixed",
  shrink = TRUE, labeller = "label_value", as.table = TRUE,
  switch = NULL, drop = TRUE, dir = "h", strip.position = "top")

Arguments

facets	Either a formula or character vector. Use either a one sided formula, ~a + b, or a character vector, c("a", "b").
nrow	Number of rows and columns.
ncol	Number of rows and columns.
scales	should Scales be fixed ("fixed", the default), free ("free"), or free in one dimension ("free_x", "free_y").
shrink	If TRUE, will shrink scales to fit output of statistics, not raw data. If FALSE, will be range of raw data before statistical summary.
labeller	A function that takes one data frame of labels and returns a list or data frame of character vectors. Each input column corresponds to one factor. Thus there will be more than one with formulae of the type ~cyl + am. Each output column gets displayed as one separate line in the strip label. This function should inherit from the "labeller" S3 class for compatibility with labeller(). See label_value for more details and pointers to other options.
as.table	If TRUE, the default, the facets are laid out like a table with highest values at the bottom-right. If FALSE, the facets are laid out like a plot with the highest value at the top-right.
switch	By default, the labels are displayed on the top and right of the plot. If "x", the top labels will be displayed to the bottom. If "y", the right-hand side labels will be displayed to the left. Can also be set to "both".
drop	If TRUE, the default, all factor levels not used in the data will automatically be dropped. If FALSE, all factor levels will be shown, regardless of whether or not they appear in the data.
dir	Direction: either "h" for horizontal, the default, or "v", for vertical.
strip.position	By default, the labels are displayed on the top of the plot. Using strip.position it is possible to place the labels on either of the four sides by setting strip.position = c("top", "bottom", "left", "right")

See Also

Other ggraph-facets: facet_edges, facet_graph

Examples

library(igraph)
gr <- graph_from_data_frame(highschool)
V(gr)$popularity <- as.character(cut(degree(gr, mode = 'in'), breaks = 3,
                                     labels = c('low', 'medium', 'high')))
ggraph(gr) +
    geom_edge_link() +
    geom_node_point() +
    facet_nodes(~popularity)

YTLogos/ggraph documentation built on May 6, 2019, 4:37 p.m.