Comment 9 for bug 654030

Axel Bruns (a-bruns) wrote :

Mathieu,

many thanks for this again. I think what I'm trying to do is more complicated than that, though:

First, as far as I can tell, the first approach (transforming numerical columns into a time interval) doesn't work for nodes or edges which appear, disappear, and the re-appear - e.g. <[1.0, 10.0); [20.0, Infinity]> in my example above, which is visible from 1 to 10, and then again from 20 to the end. I'm not sure whether Gephi allows me to select four columns (e.g. start1, end1, start2, end2) to convert into one single time interval - but even that would get very messy in the case of a node which appears and disappears very frequently over time...

And I've been reluctant to try the GEXF route, mainly because of the nature of my data: if I understand GEXF slices right (and I may not), they work only for fairly well-defined and consistent time intervals (day by day, hour by hour, etc.). However, I'm dealing with continuous Twitter data which has no clear time intervals - tweets may appear at random, any second of the timeline, and I don't want to lose too much of that resolution by defining hour-by-hour slices, for example. Also, converting my Twitter data (which is in CSV form by default) to GEXF for import into Gephi would be very work-intensive - being able to import the CSVs of nodes and edges which I already have would be a lot easier...;-)

So if there's a way to add functionality in Gephi to activate the Time Interval column which I can already import, that would be the path of least resistance for my purposes... I know it's a very obscure request, but if there's a any way to do it, that would be fantastic !

Axel