Modify the node size of an existing 'sigmaNet' object by providing one of the following: (1) A single size to use for all nodes; (2) a vector of node sizes (this must be the same length as the number of nodes in the graph); or (3) a metric to use to scale the nodes.
addNodeSize(sigmaObj, minSize = 1, maxSize = 3, sizeMetric = "degree", sizeVector = NULL, oneSize = NULL)
| sigmaObj | A 'sigmaNet' object - created using the 'sigmaFromIgraph' function |
|---|---|
| minSize | The minimum node size on the graph (for scaling) |
| maxSize | The maximum node size on the graph (for scaling) |
| sizeMetric | The metric to use when sizing the nodes. Options are: degree, closeness, betweenness, pageRank, or eigenCentrality. |
| sizeVector | An optional vector with the sizes for each node (overrides sizeMetric and min/maxSize) |
| oneSize | A single size to use for all nodes |
A 'sigmaNet' object with modified node sizes This object can be called directly to create a visualization, or modified by additional functions.
If using the 2nd or 3rd approach, specifying the minSize and maxSize attributes will scale the nodes according to your specification, between these min- and max sizes.
library(igraph) library(sigmaNet) library(magrittr) data(lesMis) l <- layout_nicely(lesMis) #one size for all nodes sig <- sigmaFromIgraph(graph = lesMis, layout = l) %>% addNodeSize(oneSize = 3) sig #using a size attribute sig <- sigmaFromIgraph(graph = lesMis, layout = l) %>% addNodeSize(sizeMetric = 'degree', minSize = 2, maxSize = 8) sig #using a vector customSize <- log10(degree(lesMis)) sig <- sigmaFromIgraph(graph = lesMis, layout = l) %>% addNodeSize(sizeVector = customSize) sig