This file is indexed.

/usr/lib/R/site-library/igraph/demo/cohesive.R is in r-cran-igraph 0.7.1-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
pause <- function() {
  cat("Press ENTER/RETURN/NEWLINE to continue.")
  readLines(n=1)
  invisible()
}

### The Zachary Karate club network

karate <- graph.famous("Zachary")
summary(karate)

pause()

### Create a layout that is used from now on

karate$layout <- layout.auto(karate)
plot(karate)

pause()

### Run cohesive blocking on it

cbKarate <- cohesive.blocks(karate)
cbKarate

pause()

### Plot the results and all the groups

plot(cbKarate, karate)

pause()

### This is a bit messy, plot them step-by-step
### See the hierarchy tree first

hierarchy(cbKarate)
plotHierarchy(cbKarate)

## Plot the first level, blocks 1 & 2

plot(cbKarate, karate, mark.groups=blocks(cbKarate)[1:2+1],
     col="cyan")

pause()

### The second group is simple, plot its more cohesive subgroup

plot(cbKarate, karate, mark.groups=blocks(cbKarate)[c(2,5)+1], col="cyan")

pause()

### The first group has more subgroups, plot them

sub1 <- blocks(cbKarate)[parent(cbKarate)==1]
sub1
plot(cbKarate, karate, mark.groups=sub1)

pause()