DiagrammeR (version 0.8.1)

select_graph_from_series: Select a graph available in a series

Description

Using a graph series object of type dgr_graph_1D, select a graph object.

Usage

select_graph_from_series(graph_series, graph_no)

Arguments

graph_series

a graph series object of type dgr_graph_1D.

graph_no

the index of the graph in the graph series.

Examples

# Create three graphs (using \code{magrittr} for piping)
# and create a graph series using those graphs
library(magrittr)

graph_1 <- create_graph() %>%
  add_node("a") %>% add_node("b") %>% add_node("c") %>%
  add_edges(from = c("a", "a", "b"),
            to =   c("c", "b", "c"))

graph_2 <- graph_1 %>%
  add_node("d") %>% add_edges(from = "d", to = "c")

graph_3 <- graph_2 %>%
  add_node("e") %>% add_edges(from = "e", to = "b")

# Create an empty graph series
series <- create_series(series_type = "sequential")

# Add graphs to the graph series
series <- graph_1 %>% add_to_series(series)
series <- graph_2 %>% add_to_series(series)
series <- graph_3 %>% add_to_series(series)

# Select the second graph in the series
extracted_graph <-
  select_graph_from_series(graph_series = series,
                           graph_no = 2)