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如果有另一个顶点同时引用了两个顶点,则这两个顶点被称为共被引。cocitation() 简单地计算两个顶点被共被引的次数。两个顶点的书目耦合是指它们共同引用的其他顶点的数量,bibcoupling() 计算这个数量。

用法

cocitation(graph, v = V(graph))

bibcoupling(graph, v = V(graph))

参数

graph

要分析的图对象

v

顶点序列或数值向量,我们要计算共被引或书目耦合值的顶点 ID。默认值为所有顶点。

一个数值矩阵,包含 length(v) 行和 vcount(graph) 列。元素 (i,j) 包含顶点 v[i]j 的共被引或书目耦合值。

详细信息

cocitation() 计算 v 参数中的顶点和图中所有顶点的共被引计数。

bibcoupling() 计算 v 中的顶点和图中所有顶点的书目耦合。

计算仅一个顶点的共被引或书目耦合的计算量与计算所有顶点的计算量相同。这将来可能会改变。

参见

其他共被引: similarity()

作者

Gabor Csardi csardi.gabor@gmail.com

示例


g <- make_kautz_graph(2, 3)
cocitation(g)
#>       [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12] [,13]
#>  [1,]    0    2    0    0    0    0    0    0    0     0     0     0     0
#>  [2,]    2    0    0    0    0    0    0    0    0     0     0     0     0
#>  [3,]    0    0    0    2    0    0    0    0    0     0     0     0     0
#>  [4,]    0    0    2    0    0    0    0    0    0     0     0     0     0
#>  [5,]    0    0    0    0    0    2    0    0    0     0     0     0     0
#>  [6,]    0    0    0    0    2    0    0    0    0     0     0     0     0
#>  [7,]    0    0    0    0    0    0    0    2    0     0     0     0     0
#>  [8,]    0    0    0    0    0    0    2    0    0     0     0     0     0
#>  [9,]    0    0    0    0    0    0    0    0    0     2     0     0     0
#> [10,]    0    0    0    0    0    0    0    0    2     0     0     0     0
#> [11,]    0    0    0    0    0    0    0    0    0     0     0     2     0
#> [12,]    0    0    0    0    0    0    0    0    0     0     2     0     0
#> [13,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [14,]    0    0    0    0    0    0    0    0    0     0     0     0     2
#> [15,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [16,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [17,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [18,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [19,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [20,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [21,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [22,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [23,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [24,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#>       [,14] [,15] [,16] [,17] [,18] [,19] [,20] [,21] [,22] [,23] [,24]
#>  [1,]     0     0     0     0     0     0     0     0     0     0     0
#>  [2,]     0     0     0     0     0     0     0     0     0     0     0
#>  [3,]     0     0     0     0     0     0     0     0     0     0     0
#>  [4,]     0     0     0     0     0     0     0     0     0     0     0
#>  [5,]     0     0     0     0     0     0     0     0     0     0     0
#>  [6,]     0     0     0     0     0     0     0     0     0     0     0
#>  [7,]     0     0     0     0     0     0     0     0     0     0     0
#>  [8,]     0     0     0     0     0     0     0     0     0     0     0
#>  [9,]     0     0     0     0     0     0     0     0     0     0     0
#> [10,]     0     0     0     0     0     0     0     0     0     0     0
#> [11,]     0     0     0     0     0     0     0     0     0     0     0
#> [12,]     0     0     0     0     0     0     0     0     0     0     0
#> [13,]     2     0     0     0     0     0     0     0     0     0     0
#> [14,]     0     0     0     0     0     0     0     0     0     0     0
#> [15,]     0     0     2     0     0     0     0     0     0     0     0
#> [16,]     0     2     0     0     0     0     0     0     0     0     0
#> [17,]     0     0     0     0     2     0     0     0     0     0     0
#> [18,]     0     0     0     2     0     0     0     0     0     0     0
#> [19,]     0     0     0     0     0     0     2     0     0     0     0
#> [20,]     0     0     0     0     0     2     0     0     0     0     0
#> [21,]     0     0     0     0     0     0     0     0     2     0     0
#> [22,]     0     0     0     0     0     0     0     2     0     0     0
#> [23,]     0     0     0     0     0     0     0     0     0     0     2
#> [24,]     0     0     0     0     0     0     0     0     0     2     0
bibcoupling(g)
#>       [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12] [,13]
#>  [1,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#>  [2,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#>  [3,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#>  [4,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#>  [5,]    0    0    0    0    0    0    0    0    0     0     0     0     2
#>  [6,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#>  [7,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#>  [8,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#>  [9,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [10,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [11,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [12,]    0    0    0    0    0    0    0    0    0     0     0     0     0
#> [13,]    0    0    0    0    2    0    0    0    0     0     0     0     0
#> [14,]    0    0    0    0    0    2    0    0    0     0     0     0     0
#> [15,]    0    0    0    0    0    0    2    0    0     0     0     0     0
#> [16,]    0    0    0    0    0    0    0    2    0     0     0     0     0
#> [17,]    0    0    0    0    0    0    0    0    2     0     0     0     0
#> [18,]    0    0    0    0    0    0    0    0    0     2     0     0     0
#> [19,]    0    0    0    0    0    0    0    0    0     0     2     0     0
#> [20,]    0    0    0    0    0    0    0    0    0     0     0     2     0
#> [21,]    2    0    0    0    0    0    0    0    0     0     0     0     0
#> [22,]    0    2    0    0    0    0    0    0    0     0     0     0     0
#> [23,]    0    0    2    0    0    0    0    0    0     0     0     0     0
#> [24,]    0    0    0    2    0    0    0    0    0     0     0     0     0
#>       [,14] [,15] [,16] [,17] [,18] [,19] [,20] [,21] [,22] [,23] [,24]
#>  [1,]     0     0     0     0     0     0     0     2     0     0     0
#>  [2,]     0     0     0     0     0     0     0     0     2     0     0
#>  [3,]     0     0     0     0     0     0     0     0     0     2     0
#>  [4,]     0     0     0     0     0     0     0     0     0     0     2
#>  [5,]     0     0     0     0     0     0     0     0     0     0     0
#>  [6,]     2     0     0     0     0     0     0     0     0     0     0
#>  [7,]     0     2     0     0     0     0     0     0     0     0     0
#>  [8,]     0     0     2     0     0     0     0     0     0     0     0
#>  [9,]     0     0     0     2     0     0     0     0     0     0     0
#> [10,]     0     0     0     0     2     0     0     0     0     0     0
#> [11,]     0     0     0     0     0     2     0     0     0     0     0
#> [12,]     0     0     0     0     0     0     2     0     0     0     0
#> [13,]     0     0     0     0     0     0     0     0     0     0     0
#> [14,]     0     0     0     0     0     0     0     0     0     0     0
#> [15,]     0     0     0     0     0     0     0     0     0     0     0
#> [16,]     0     0     0     0     0     0     0     0     0     0     0
#> [17,]     0     0     0     0     0     0     0     0     0     0     0
#> [18,]     0     0     0     0     0     0     0     0     0     0     0
#> [19,]     0     0     0     0     0     0     0     0     0     0     0
#> [20,]     0     0     0     0     0     0     0     0     0     0     0
#> [21,]     0     0     0     0     0     0     0     0     0     0     0
#> [22,]     0     0     0     0     0     0     0     0     0     0     0
#> [23,]     0     0     0     0     0     0     0     0     0     0     0
#> [24,]     0     0     0     0     0     0     0     0     0     0     0