Hello,
I am calculating 'Betweenness' of a large network using R. Currently, I have
the node-node information (City1-City2) in an excel file, present in two
columns where column A has City1 and column B has City2 that city1 is connected
to. These are the steps that I go through to calculate betweenness of my
network.
a) Convert the City1-City2 (text) into Number1-Number2 in the excel file where
every unique city has a unique number.
b) Paste all the city-city information separated by comma into c(...) in the R
GUI to obtain the corresponding vectors. As you can imagine this copy-paste
operation takes a long time. Example: c(1,3,1,5,2,4,2,5). Just fyi, I have a
text file that contains all nodes separated by comma based on the appropriate
link information.
c) Then, I create a graph file with the above vector.
d) I use the graph file to calculate betweenness of my network.
I am sure there must be a better, more efficient way to calculate betweenness.
Ideally, I would like to just have the City1 - City2 (link) information in two
columns in an excel file and calculate the betweenness from that file directly.
Please provide an optimal solution for this problem. I appreciate your time and
help.
Thanks,
Senthil
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