problem with output when using networkdynamic

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Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
42/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
r
Domain
data

Research direction

Load issued_networkdynamic.RData and reproduce the networkDynamic() construction using dynamic_edge, dynamic_node, and net. Inspect the result with as.data.frame(dynet), timeline(dynet), and reconcile.edge.activity(); done means identifying why the extra edges appear and documenting or correcting the behavior.

Written by the indexing model from the issue text.

Description

Hi,
I am faced a problem with networkdynamic output: 30 new edges have been added to my network while they did not exist in the original edgelist. And, I don't know why.

For instance, in the original dynamic edgelist used to produced a dynamic network, the vertex 24 is connected to vertex 1 through one edge. This connection last fron step 5 to step 6.

onset terminus tail head onset.censored terminus.censored duration
115 5.00 6.00 1 24 TRUE TRUE 1.00

But, after I created my dynamic network with networkdynamic, three news edges have been created betweent node 24 and nodes 3, 9, 13.

onset terminus tail head onset.censored terminus.censored duration edge.id
1 0.00 33.00 3.00 24.00 TRUE TRUE 33.00 44.00
2 0.00 33.00 9.00 24.00 TRUE TRUE 33.00 112.00
3 0.00 33.00 13.00 24.00 TRUE TRUE 33.00 161.00
4 5.00 6.00 1.00 24.00 FALSE FALSE 1.00 286.00

Here is my code:

load("issued_networkdynamic.RData")

static_node <- static_node[,0:2]

net <- network(static_edge,
  vertex.attr = static_node,
  directed = TRUE,
  bipartite = FALSE,
  multiple = FALSE,
  loops = FALSE
)


dynamic_edge <- dynamic_edge[,0:7]

dynet <- networkDynamic(
  net,
  edge.spells = dynamic_edge,
  vertex.spells = dynamic_node,
  #create.TEAs = TRUE
)

# Here we can see that there are 30 new edges => why ?
t <- as.data.frame(dynet)

timeline(dynet)

# reconcile.edge.activity allows to correct conflicts between edges and vertices, but there are still edges which did not exist in the original edgelist
reconcile.edge.activity(net = dynet, mode = "reduce.to.vertices", active.default = TRUE)

render.d3movie(dynet, 
               animation.mode='kamadakawai',
               usearrows = T,
               displaylabels = T, label= "vertex.id")

And data can be found here : https://github.com/luneauaymeric/dynamic_graph_with_ndtv/blob/main/issued_networkdynamic.RData

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