create a graph for a large dataset in Matlab

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bita hallajian
bita hallajian 2017-10-27
评论： bita hallajian 2017-10-27
How to create a graph for a large dataset in Matlab? first load the dataset, how to define nodes, edges, and weights?because we cant define source and target nodes and their weights in a large dataset, for example, creating graph for a social network

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Steven Lord
Steven Lord 2017-10-27
How large is your "large dataset"?
You might find this post on Loren's blog useful, as it walks through creating and analyzing a graph using data about friendship between a number of karate clubs.
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Steven Lord
Steven Lord 2017-10-27
So you want two nodes to be connected by an edge if there is at least one bug on which they both commented? So if you looked at MATLAB Answers you and I would be connected because we both posted in this Answer?
That should be possible to do, but I don't have any code prepared to do it. My thought is to assemble an array with two columns, each row containing a pair of people who posted in the same bug. sort each row then take the unique rows. Continue building that array until you've processed all the bugs in the tracking system, then build your graph using that array.
Alternately for each bug report you could build that same array, check which edges are not already in the graph under construction using findedge, and add the new edges using addedge.
bita hallajian
bita hallajian 2017-10-27
With great thanks for your help I'll try the helpful points you directed me

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