使用临时igraph选项设置运行代码
参见
其他 igraph 选项: igraph_options()
示例
with_igraph_opt(
list(sparsematrices = FALSE),
make_ring(10)[]
)
#> [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
#> [1,] 0 1 0 0 0 0 0 0 0 1
#> [2,] 1 0 1 0 0 0 0 0 0 0
#> [3,] 0 1 0 1 0 0 0 0 0 0
#> [4,] 0 0 1 0 1 0 0 0 0 0
#> [5,] 0 0 0 1 0 1 0 0 0 0
#> [6,] 0 0 0 0 1 0 1 0 0 0
#> [7,] 0 0 0 0 0 1 0 1 0 0
#> [8,] 0 0 0 0 0 0 1 0 1 0
#> [9,] 0 0 0 0 0 0 0 1 0 1
#> [10,] 1 0 0 0 0 0 0 0 1 0
igraph_opt("sparsematrices")
#> [1] TRUE