Generates a bigger graph using exponential growth.

Generates a bigger graph using parameters for node and edge growth. If a sequence of graphs are created, the number of nodes in this sequence would exponentially increase.

Usage

generate_graph_exp(
  gr = NULL,
  del_edge = 0.1,
  new_nodes = 0.1,
  edge_increase = 0.1
)

Arguments

gr

The input graph to generate the next graph. If set to NULL a graph using igraph::sample_pa is used as the input graph.

del_edge

The proportion of edges deleted from the input graph. Default set to 0.1.

new_nodes

The proportion of nodes added to the input graph. Default set to 0.1.

edge_increase

The proportion of edges added to the input graph. Default set to 0.1.

Value

A graph.

Examples

set.seed(1)
gr <- generate_graph_exp()
gr
#> IGRAPH 1ddb56f U--- 6 4 -- Barabasi graph
#> + attr: name (g/c), power (g/n), m (g/n), zero.appeal (g/n), algorithm
#> | (g/c)
#> + edges from 1ddb56f:
#> [1] 1--2 1--3 1--4 2--5