Edge from label is always null string ""

[rjurney]

{
"edges": [
{
"": "AmazonWebServices",
"weight": 1.0,
"directed": true
},
{
"": "Cloudera",
"weight": 1.0,
"directed": true
},
{
"": "Mapr",
"weight": 1.0,
"directed": true
},
{
"": "Hortonworks",
"weight": 1.0,
"directed": true
},
{
"": "At&T",
"weight": 2.0,
"directed": true
},
{
"": "HewlattPackard",
"weight": 1.0,
"directed": true
},
{
"": "Google",
"weight": 1.0,
"directed": true
},
{
"": "Polycom",
"weight": 1.0,
"directed": true
},
{
"": "Ibm",
"weight": 1.0,
"directed": true
},
...
]
}

[bfontaine]

Hello,
Could you please provide a minimal code example to reproduce the issue?

[rjurney]

https://gist.github.com/rjurney/726433d4a36daa7cc17d

That file loaded with GDF::load() reproduces the issue.

[bfontaine]

Thanks, I can confirm the bug, I’ll work on it.

[rjurney]

Thanks, also I can't build the gem :(

Russells-MacBook-Pro:Graphs.rb rjurney$ gem cert --add <(curl -Ls https://gist.github.com/bfontaine/5233818/raw/gem-public-key.pem)
Added '/CN=batifon/DC=yahoo/DC=fr'

Russells-MacBook-Pro:Graphs.rb rjurney$ gem build graphs.gemspec
ERROR: While executing gem ... (Gem::Security::Exception)
certificate /CN=batifon/DC=yahoo/DC=fr does not match the signing key

[bfontaine]

I fixed the issue and released the v0.2.0. Regarding the building issue I guess you’d have to sign with your own key but I’m not sure.

[rjurney]

Now I get this issue when parsing a GDF file:

jruby-1.7.4 :005 > g = GDF::load('../data/BigHadoopPartner.gdf')
CSV::MalformedCSVError: Missing or stray quote in line 1
from /Users/rjurney/.rvm/rubies/jruby-1.7.4/lib/ruby/1.9/csv.rb:1895:in shift' from org/jruby/RubyArray.java:1617:ineach'
from /Users/rjurney/.rvm/rubies/jruby-1.7.4/lib/ruby/1.9/csv.rb:1887:in shift' from org/jruby/RubyKernel.java:1489:inloop'
from /Users/rjurney/.rvm/rubies/jruby-1.7.4/lib/ruby/1.9/csv.rb:1849:in shift' from /Users/rjurney/.rvm/rubies/jruby-1.7.4/lib/ruby/1.9/csv.rb:1396:inparse_line'
from /Users/rjurney/.rvm/rubies/jruby-1.7.4/lib/ruby/1.9/csv.rb:2354:in parse_csv' from /Users/rjurney/.rvm/gems/jruby-1.7.4/gems/graphs-0.2.0/lib/graphs/gdf.rb:101:inparse'
from org/jruby/RubyString.java:7127:in each_line' from /Users/rjurney/.rvm/gems/jruby-1.7.4/gems/graphs-0.2.0/lib/graphs/gdf.rb:85:inparse'
from /Users/rjurney/.rvm/gems/jruby-1.7.4/gems/graphs-0.2.0/lib/graphs/gdf.rb:63:in load' from (irb):5:inevaluate'
from org/jruby/RubyKernel.java:1093:in eval' from org/jruby/RubyKernel.java:1489:inloop'
from org/jruby/RubyKernel.java:1254:in catch' from org/jruby/RubyKernel.java:1254:incatch'
from /Users/rjurney/.rvm/rubies/jruby-1.7.4/bin/irb:13:in `(root)'jruby-1.7.4 :006 >

Line 1-2 looks like:

nodedef> name VARCHAR,label VARCHAR,width DOUBLE,height DOUBLE,x DOUBLE,y DOUBLE,color VARCHAR,group INTEGER,PageRank DOUBLE default 0.0,Modularity Class INTEGER default 0
Auren,"Auren",1.0028039,1.0028039,1169.1615,473.4499,'30,110,229',2,1.4706891233271104E-4,13

[rjurney]

Actually, this line is messing it up:

LINE: Securboration,,","Securboration,",1.0017138,1.0017138,868.6553,-414.62808,'30,229,205',1,1.4695786844141188E-4,4

[bfontaine]

You have an unclosed quote here:

Securboration,,","Securboration,",1.0017138,1.0017138,868.6553,-414.62808,'30,229,205',1,1.4695786844141188E-4,4
               ^

The parser thinks you open a quote for a field but it’s never closed, hence the error.

Edit: in fact, this part is strange: ","Securboration,". What are these quotes for?

[rjurney]

Thanks, yeah. I have many corrupted lines. I must clean Gephi's output before loading it.