[igraph] get.adgedgelist suggests non existing loop

[Hermann Norpois]

Hello,

I observed the phenomenon that the first vertex suggests to be connected to itself - following the command get.adjelist. But this is not the case. Did I miss anything?

Thanks Hermann

Example:
get.adjedgelist (huz)

$rs112856858
[1] 1 2 3 4 5 6 7

$rs7366404
[1] 8 9

$rs117086422
[1]  1 10 11 12 13 14 15

...
It is not the case for:
str (huz)
IGRAPH UNW- 11 31 --
+ attr: name (v/c), x (v/n), y (v/n), weight (e/n)
+ edges (vertex names):
rs112856858 -- rs117086422, rs57760052, rs28612348, rs58781670,
               rs4475691, rs950122, rs3905286
rs7366404 -- rs4970334, rs4970333

.....
... and:
huz[,]
11 x 11 sparse Matrix of class "dgCMatrix"
   [[ suppressing 11 column names ‘rs112856858’, ‘rs7366404’, ‘rs117086422’ ... ]]
                                                                         
rs112856858 .        .        0.905914 0.918142 0.862112 .        0.851176
rs7366404   .        .        .        .        .        0.965777 .



dput (huz)
structure(list(11, FALSE, c(2, 3, 4, 6, 8, 9, 10, 5, 7, 3, 4,
6, 8, 9, 10, 4, 6, 8, 9, 10, 6, 8, 9, 10, 7, 8, 9, 10, 9, 10,
10), c(0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3,
3, 3, 4, 4, 4, 4, 5, 6, 6, 6, 8, 8, 9), c(0, 1, 9, 2, 10, 15,
7, 3, 11, 16, 20, 8, 24, 4, 12, 17, 21, 25, 5, 13, 18, 22, 26,
28, 6, 14, 19, 23, 27, 29, 30), c(0, 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), c(0, 0, 0, 1, 3, 6, 7, 11, 13, 18, 24,
31), c(0, 7, 9, 15, 20, 24, 25, 28, 28, 30, 31, 31), list(c(1,
0, 1), structure(list(), .Names = character(0)), structure(list(
    name = c("rs112856858", "rs7366404", "rs117086422", "rs57760052",
    "rs28612348", "rs4970334", "rs58781670", "rs4970333", "rs4475691",
    "rs950122", "rs3905286"), x = c(845274L, 845283L, 845635L,
    845938L, 846078L, 846338L, 846398L, 846489L, 846808L, 846864L,
    847228L), y = c(22.613664, 6.872323, 24.143785, 25.418544,
    27.025684, 6.891312, 23.619718, 6.853977, 24.952302, 26.177151,
    25.863288)), .Names = c("name", "x", "y")), structure(list(
    weight = c(0.905914, 0.918142, 0.862112, 0.851176, 0.830663,
    0.828752, 0.795978, 0.965777, 0.954814, 0.968856, 0.91619,
    0.899706, 0.886057, 0.905914, 0.847388, 0.948302, 0.928708,
    0.918511, 0.918142, 0.877348, 0.879914, 0.967857, 0.967698,
    0.926782, 0.988668, 0.852178, 0.851176, 0.811661, 0.956284,
    0.917279, 0.916858)), .Names = "weight"))), class = "igraph")