NetLogo / NetLogo/NW-Extension
GraphML import/export bug/issue
Nobody has claimed this yet.
- Dominant language
- Scala
- Stars
- 66
- Forks
- 25
- PR merge metrics
- No merged PRs in 30d
Description
In exporting / exporting using the GraphML file format I found an issue. While exporting from Netlogo worked fine, Gephi is able to correctly opens the outputted files, getting those files imported into R however failed.
Error in .Call("R_igraph_read_graph_graphml", file, as.numeric(index), :
At foreign-graphml.c:1350 : Graph index was too large, Invalid value<
Doing some searching I found this to be a GraphML namespace issue see (https://github.com/igraph/igraph/issues/685). Testing the fix suggested in this link, the issue seems to be an incorrect link to the namesapce. GraphML namespace is http://graphml.graphdrawing.org/xmlns (according to the post) and not http://graphml.graphdrawing.org/xmlns/graphml. This indeed fixed he issue for me.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source file or test is named in the issue. Locate the GraphML import/export entry point, check the namespace used in exported files against the namespace described here, and verify the result by importing an exported file into R without the reported graph-index error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- r, scala
- Domain
- data
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100