[SOLVED] dynamic weights and spreadsheet import

[dreiss]

Hi, I am trying to import a dynamic graph where the edge weights vary dynamically. (To be used with ForceAtlas2 layout). However, when I try to import the edges table with a dynamic "Weight" column, the importer forces me to import it as a Float (not a dynamic float), and then after imported, all the weights are just set to 1. Is this a bug, or am I doing things wrong? Any help is appreciated.

Here are the first few rows of my file:

"Source","Target","Type","TimeInterval","Weight"
"VNG0001H","VNG0002G","Undirected","<[1,1];[2,2]>","<[1,1,0.019];[2,2,0.016]>"
"VNG0001H","VNG0003C","Undirected","<[1,1];[2,2]>","<[1,1,0.013];[2,2,0.011]>"
"VNG0001H","VNG0006G","Undirected","<[1,1];[2,2]>","<[1,1,0.003];[2,2,0.003]>"
"VNG0001H","VNG0008G","Undirected","<[1,1];[2,2]>","<[1,1,0.011];[2,2,0.010]>"
"VNG0001H","VNG0009G","Undirected","<[1,1]>","<[1,1,0.002]>"
"VNG0001H","VNG0013C","Undirected","<[1,1];[2,2]>","<[1,1,0.007];[2,2,0.008]>"
"VNG0001H","VNG0039H","Undirected","<[1,1];[2,2]>","<[1,1,0.004];[2,2,0.006]>"
"VNG0001H","VNG0040C","Undirected","<[1,1];[2,2]>","<[1,1,0.002];[2,2,0.005]>"
"VNG0001H","VNG0041C","Undirected","<[2,2]>","<[2,2,0.003]>"
"VNG0001H","VNG0102C","Undirected","<[1,1]>","<[1,1,0.003]>"

[eduramiba]

Hi,
The problem is that default gephi workspaces have the Weight column as a simple Float. This is the only column that is dynamic or not depending on the workspace.
Maybe a button in data laboratory to convert the weight column to dynamic would be useful.

But you can do the following:
Load an empty dyanimc graph. (You can use the attached gexf file to do that)
Then just import the csv file.

I tested your file and it works this way.
But please note that your edge time intervals look like this

Code: Select all

<[1.0, 1.0]; [2.0, 2.0]>

This means that the edges exist in the instants 1.0 and 2.0 of time.
If you want them to exist from 1.0 to 2.0, then just write <[1.0, 2.0]>

Eduardo

[dreiss]

Thanks, pre-loading that file worked like a charm.

Perhaps a feature request would be to include a "Dynamic" option for the "Import Spreadsheet" option in future versions.

And thanks for pointing out the issue in my time format.